Clamping device and automatic steel ladle feeding system

Abstract

The utility model belongs to the technical field of steel ladle design and automation, and particularly relates to a clamping device and an automatic steel ladle feeding system. The clamping device comprises a moving structure; the clamping jaw sets are connected to the moving structure, and each clamping jaw set comprises a first clamping jaw and a second clamping jaw; the driving mechanism can drive the moving structure to move, so that the first clamping jaw and the second clamping jaw can be mutually unfolded or clamped; a groove is formed in the tail end, away from the moving structure, of the first clamping jaw, a protruding block is arranged at the tail end, away from the moving structure, of the second clamping jaw, and when the first clamping jaw and the second clamping jaw are in the clamping state, the protruding block can be contained in the groove. By means of the design, the connecting strength between the first clamping jaw and the second clamping jaw can be improved, a large contact area is formed between the first clamping jaw and the second clamping jaw and clamping of a material bag, higher friction force is provided, the material bag can be prevented from sliding or falling off in the clamping process, and therefore the stability of production and machining is improved.

Description

Technical Field

[0001] This application belongs to the technical field of ladle design and automation, and in particular relates to a clamping device and a ladle automatic feeding system. Background Art

[0002] Ladle covering agent and carbon powder are common additives in the steelmaking process; the ladle covering agent is mainly used for heat preservation and heat insulation on the surface of the molten steel in the ladle. After the ladle covering agent is added to the ladle, it can quickly spread on the surface of the molten steel and form a heat-insulating and heat-insulating powder layer, which helps to prevent the molten steel from transferring or radiating heat to the air, thereby reducing the heat loss of the molten steel. In addition, the ladle covering agent also has the function of preventing secondary oxidation of the molten steel and can adsorb harmful inclusions on the surface of the molten steel, thereby maintaining the purity and performance of the molten steel. On the other hand, carbon powder is used as an additive in the steelmaking process to adjust the chemical composition and properties of the steel. For example, it can increase the carbon content of the steel, thereby changing the mechanical properties and heat treatment characteristics of the steel.

[0003] In the prior art, the addition of the covering agent and carbon powder still relies on manual operation. However, a large amount of dust and waste gas will be generated during the addition process of the covering agent and carbon powder, which may pose a potential threat to health, and the uniformity of the addition cannot be guaranteed; thus, existing manufacturers tend to design an automatic addition system to reduce manual operation. However, the applicant found in practice that the material bags for loading and unloading the covering agent and carbon powder are usually made of flexible materials, such as plastics or soft papers. Some material bags even use aluminum foil bags for characteristics such as moisture-proof, light-proof, and anti-ultraviolet. Then, the shape and structure of the material bag are deformed, resulting in unstable clamping positions, and the outer surface is also relatively smooth, making it difficult to be stably clamped by the clamping jaws. In addition, both the covering agent and carbon powder are in powder form, resulting in the clamping jaws being difficult to obtain sufficient friction to stably clamp. If the material bag falls into the ladle due to insufficient stability, it will cause huge production losses. Summary of the Utility Model

[0004] To solve the above problems, this application provides a clamping device and a ladle automatic feeding system.

[0005] A clamping device of this application includes: a motion structure; at least a pair of jaw groups connected to the motion structure, each pair of jaw groups includes a first jaw and a second jaw; a driving mechanism capable of driving the motion structure to move so that the first jaw and the second jaw can be mutually unfolded or clamped; wherein, a groove is arranged at the end of the first jaw far away from the motion structure, and a convex block is arranged at the end of the second jaw far away from the motion structure. When the first jaw and the second jaw are in the clamping state, the convex block can be received in the groove.

[0006] In a further solution of this application, the groove is a V-shaped groove, and the convex block is a triangular protrusion.

[0007] In the solution provided by the application, the sharp shape at the end of the triangular protrusion can easily pierce the surface of the plastic bag, ensuring that the bump can be smoothly inserted into the plastic bag to effectively clamp it. Once the end of the bump pierces the plastic bag, its shape and structure will continue to squeeze the plastic bag, making it closely fit in the V-shaped groove. The squeezing effect increases the stability of the clamping and prevents the plastic bag from sliding or falling off during the clamping process.

[0008] In a further solution of the present application, the first clamping jaw and the second clamping jaw have the same structure. The first clamping jaw includes a first connecting arm and a second connecting arm. The first connecting arm and the second connecting arm are connected at an angle, and the groove is provided at the end of the first connecting arm away from the first connecting arm.

[0009] Based on the solution of the present application, the second clamping jaw and the first clamping jaw have the same structural features, that is, they also include a first connecting arm and a second connecting arm, and the first connecting arm and the second connecting arm are connected at a certain angle, that is, the first clamping jaw and the second clamping jaw are bent as a whole to save the movement stroke of the driving mechanism and better adapt to the contour of the plastic bag.

[0010] In a further solution of the present application, the movement structure can drive the first clamping jaw and the second clamping jaw to expand or clamp synchronously through lifting.

[0011] Based on the solution of the present application, the synchronous expansion or clamping of the first clamping jaw and the second clamping jaw can ensure the consistency and stability when clamping or releasing the plastic bag, and save costs at the same time.

[0012] In a further solution of the present application, the driving mechanism is connected to the movement structure to drive the movement structure to vertically lift and lower; at least one sliding groove is included on the side of the movement structure away from the driving mechanism; a first connecting part is connected to the end of the first clamping jaw away from the groove, and a second connecting part is connected to the end of the second clamping jaw away from the bump. The first connecting part and the second connecting part are both slidably connected in the sliding groove, and the first connecting part and the second connecting part are in the sliding groove and are symmetric about the vertical central axis relative to the sliding groove; when the movement structure vertically lifts and lowers, the first connecting part and the second connecting part approach or move away from each other along the sliding groove, so that the first clamping jaw and the second clamping jaw clamp or expand synchronously.

[0013] Based on the solution of the present application, the driving mechanism can drive the moving structure to perform vertical lifting, which simplifies the movement path of the jaws and reduces unnecessary complex mechanical actions. The vertical lifting design enables the jaws to reach the working position more quickly and accurately. The sliding grooves on the moving structure allow the first jaw and the second jaw to move freely in the vertical direction. At the same time, the first jaw and the second jaw are symmetrically arranged to ensure the consistency of clamping.

[0014] In a further solution of the present application, the sliding groove is a T-shaped groove; the first connecting portion includes a connecting rod and pulleys rotatably connected to both ends of the connecting rod. At one end of the first jaw away from the groove and at one end of the second jaw away from the protrusion, connection holes are provided. The connecting rod is connected in the connection holes, and the pulleys respectively abut against both ends of the connection holes.

[0015] Based on the solution of the present application, the cross-sectional shape of the T-shaped groove allows the connecting portion to move in the groove in a stable manner. There are supports corresponding to the pulleys on both sides of the T-shaped groove, and the connecting portion is not likely to shake or deviate from the track during vertical lifting. This stability enables the precise and stable movement of the jaws.

[0016] In a further solution of the present application, the clamping device further includes a fixing structure, which includes a top plate and a side plate connected to the end of the top plate. The top plate and the side plate enclose an installation space; the moving structure is arranged in the installation space and can lift along the inner wall of the side plate.

[0017] In a further solution of the present application, second installation holes are provided on the side plate, and rotation shaft holes corresponding to the second installation holes are provided on the first jaw and the second jaw; the clamping device further includes a rotation shaft, both ends of the rotation shaft are connected to the side plate, and the first jaw and the second jaw are rotatably connected to the rotation shaft through the rotation shaft holes.

[0018] In a further solution of the present application, the driving mechanism includes an oil cylinder and a pull rod connected to the oil cylinder. A third installation hole communicating with the installation space is provided on the top plate. The oil cylinder is fixedly connected to the top plate, and the pull rod passes through the third installation hole and is connected to the side of the moving structure facing away from the sliding groove to drive the moving structure to lift.

[0019] In the second aspect of the present application, a ladle automatic feeding system is further provided, which includes the clamping device as described above; a moving device, the clamping device is connected to the moving device; a bag breaker, which is arranged at the feeding port of the ladle and is used to break the bag; wherein, the moving device grabs the bag by carrying the clamping device, and after moving the bag to the bag breaker for breaking, the material is released into the feeding port.

[0020] In summary, the clamping device provided in this application includes a motion structure, a jaw group, and a driving mechanism. The jaw group is connected to the motion structure and includes a first jaw and a second jaw. The driving mechanism can drive the motion structure to move so that the first jaw and the second jaw can be unfolded or clamped with each other; a groove is provided at the end of the first jaw away from the motion structure, and a convex block is provided at the end of the second jaw away from the motion structure. When the first jaw and the second jaw are in the clamping state, the convex block can be received in the groove; by clamping the material bag, the clamping device can realize automatic feeding of the ladle, reduce manpower and improve efficiency, and also has at least the following technical effects:

[0021] When the convex block is completely received in the groove, the relative positions between the first jaw and the second jaw are precisely fixed. This helps to ensure the stable position of the clamped material bag and will not be affected by the slight movement between the first jaw and the second jaw. More importantly, the combination of the groove and the convex block forms a mechanical locking mechanism. This design can increase the connection strength between the first jaw and the second jaw, resulting in a larger contact area with the material bag during clamping, providing stronger friction, which helps to prevent the material bag from sliding or falling off during clamping, thereby improving the stability of production and processing.

[0022] Other features and advantages of the embodiments of this application will be described in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation manners of this application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific implementation manners or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the clamping device provided by the embodiment of the present utility model;

[0025] Figure 2 It is a schematic structural diagram of the jaw group in the clamping device provided by the embodiment of the present utility model;

[0026] Figure 3 It is a schematic structural diagram of the jaw group in the clamping state in the mounting assembly provided by the embodiment of the present utility model;

[0027] Figure 4 It is a partial exploded schematic diagram of the mounting assembly provided by the embodiment of the present utility model;

[0028] Figure 5Explosion schematic diagram of the installation component provided by the embodiment of the present utility model;

[0029] Figure 6 Structural schematic diagrams of the installation component provided by the embodiment of the present utility model in the unfolded state and the clamping state respectively.

[0030] The reference numerals are as follows:

[0031] 100, clamping device;

[0032] 10, motion structure; 11, sliding groove;

[0033] 20, jaw group;

[0034] 21, first jaw; 211, groove; 212, first connecting part; 2121, connecting rod; 2122, pulley;

[0035] 22, second jaw; 221, convex block; 222, second connecting part;

[0036] 21a, first connecting arm; 21b, second connecting arm;

[0037] 30, driving mechanism; 31, oil cylinder; 32, pull rod;

[0038] 40, fixing structure; 41, top plate; 411, third mounting hole; 42, side plate; 421, second mounting hole;

[0039] 50, rotating shaft;

[0040] A, connecting hole; B, rotating shaft hole; U, installation space. Detailed implementation manners

[0041] In the description of the present application, it should be understood that when terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are used to describe the orientation or positional relationship, without special instructions, it is understood as the orientation or positional relationship based on the orientation shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present application.

[0042] In addition, features limited by "first" and "second" for descriptive purposes only shall not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Features limited by "first" and "second" may explicitly or implicitly include at least one of the limited features. When the description "a plurality" appears, it generally means including at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0043] In this application, unless otherwise clearly specified and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection, it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the description of this specification, terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] As Figures 1 to 3 , this application provides a clamping device 100, including a motion structure 10, at least a pair of jaw groups 20 connected to the motion structure 10, and a driving mechanism 30; each pair of jaw groups 20 includes a first jaw 21 and a second jaw 22; the driving mechanism 30 can drive the motion structure 10 to move, and the movement of the motion structure 10 enables the first jaw 21 and the second jaw 22 to expand or clamp each other;

[0046] It should be noted that the motion structure 10 is a structural block, mainly used to support and guide the movement of the jaw groups 20. It can be understood as a slider, a guide rail, or other components that can move along a specific path or direction. The moving ability of the motion structure 10 is realized by the driving mechanism 30, which can transmit power to the motion structure 10 to enable it to move in the required direction.

[0047] Each pair of jaw groups 20 includes a first jaw 21 and a second jaw 22. These two jaws are usually symmetrically designed and can approach or move away from each other under the drive of the motion structure 10. In short, when the first jaw 21 and the second jaw 22 approach each other, the first jaw 21 and the second jaw 22 grip the material; conversely, when the first jaw 21 and the second jaw 22 move away from each other, the material can be released. The drive mechanism 30 is the power source of the clamping device 100 and is responsible for driving the motion of the motion structure 10 and the jaw groups 20. The drive mechanism 30 can be electric, pneumatic or hydraulic, depending on the application requirements and design considerations. For example, an electric drive mechanism may include a motor and a speed reducer, a pneumatic drive mechanism may include a cylinder and a pneumatic valve, and a hydraulic drive mechanism may include a hydraulic pump and a hydraulic cylinder. By being connected to the control system, the drive mechanism 30 can achieve precise motion control and clamping force adjustment.

[0048] Based on a general inventive concept of an embodiment of the present invention, a groove 211 is provided at the end of the first jaw 21 away from the motion structure 10, and a protrusion 221 is provided at the end of the second jaw 22 away from the motion structure 10. When the first jaw 21 and the second jaw 22 are in the clamping state, the protrusion 221 can be received in the groove 211.

[0049] When the protrusion 221 is completely received in the groove 211, the relative positions between the first jaw 21 and the second jaw 22 are precisely fixed. This helps to ensure the stable position of the clamped material bag and is not affected by the slight movement between the first jaw 21 and the second jaw 22. More importantly, the combination of the groove 211 and the protrusion 221 forms a mechanical locking mechanism. This design can increase the connection strength between the first jaw 21 and the second jaw 22, resulting in a larger contact area with the material bag, providing stronger friction, and helping to prevent the material bag from sliding or falling off during the clamping process.

[0050] Based on the general inventive concept, the specific morphologies of the groove 211 and the protrusion 212 are not limited, as long as the first jaw 21 and the second jaw 22 can achieve effective cooperation and locking in the clamping state. The following are some feasible embodiments of the groove 211 and the protrusion 212:

[0051] In one embodiment, the groove 211 is a trapezoid with a wider bottom and a narrower top, and the protrusion 212 matches the groove 211. The wider bottom helps to increase the contact area and stability; the narrower top helps to lock the protrusion 212 and the groove 211 to prevent the material bag from slipping. In another embodiment, the groove 211 is an arc-shaped groove, and the protrusion 212 is a spherical-like protrusion, thereby providing a more uniform clamping force.

[0052] As a preferred embodiment, the groove 211 is a V-shaped groove, and the bump 212 is a triangular protrusion. The sharp shape at the end of the triangular protrusion can easily pierce the surface of the material bag, ensuring that the bump 212 can smoothly insert into the interior of the material bag, thereby enabling effective clamping. Once the end of the bump 212 pierces the material bag, its shape and structure will continue to squeeze the material bag, causing it to closely fit within the V-shaped groove. The squeezing effect increases the stability of the clamping and prevents the material bag from sliding or falling off during the clamping process.

[0053] Continuing to refer to Figure 3 , further, in the clamped state, the bump 212 presenting a triangular protrusion is received in the groove 211 at an angle, that is, the bump 212 and the groove 211 are cross-set in the clamped state rather than being exactly aligned; this can provide a stronger clamping force to ensure that the clamped material bag does not slip or move during the operation.

[0054] Furthermore, the structures of the first clamping jaw 21 and the second clamping jaw 22 (for convenience of description, in the embodiments of the present utility model, the first clamping jaw 21 and the second clamping jaw do not include the groove 211 and the bump 221) are the same. The first clamping jaw 21 includes a first connecting arm 21a and the second connecting arm 21b. The first connecting arm 21a and the second connecting arm 21b are connected at an angle, and the groove 211 is provided at the end of the first connecting arm 21a facing away from the second connecting arm 21b.

[0055] It can be understood that the second clamping jaw 22 and the first clamping jaw 21 have the same structural features, that is, they also include a first connecting arm 21a and a second connecting arm 21b, and the first connecting arm 21a and the second connecting arm 21b are connected at a certain angle, that is, the first clamping jaw 21 and the second clamping jaw 22 are bent as a whole to save the movement stroke of the driving mechanism 30 and better adapt to the contour of the material bag.

[0056] Those skilled in the art can understand that the first clamping jaw 21 and the second clamping jaw 22 can be arranged on the same side of the clamping device 100 as shown in Figure 1 , or they can be alternately arranged in sequence on one side of the clamping device; for example: on one side of the clamping device 100, the first clamping jaw 21 and the second clamping jaw 22 are arranged in sequence, while on the other side, the second clamping jaw 22 and the first clamping jaw 21 are arranged in sequence, which can more effectively balance the load and avoid the material bag from slipping on one side, thereby improving the stability of the clamping.

[0057] Among them, the clamping device 100 grabs the material bag at an angle relative to the horizontal plane. The inclined clamping device can better adapt to material bags at different positions and angles. In a production line or a warehouse, the material bags are stacked. By adjusting the inclination angle of the clamping device, it is easier to pick up these material bags, and compared with vertical clamping, it can reduce the movement stroke, improving the flexibility and adaptability of the equipment.

[0058] In the embodiment of the present utility model, the motion structure 30 can drive the first jaw 21 and the second jaw 22 to expand or clamp synchronously through lifting, ensuring the consistency and stability when clamping or releasing the material bag, and saving costs at the same time.

[0059] As Figures 4 to 6 , the driving mechanism 30 is connected to the motion structure 10 to drive the motion structure 10 to lift vertically; one side of the motion structure 10 away from the driving mechanism 30 includes at least one sliding groove 11; one end of the first jaw 21 away from the groove 211 is connected with a first connecting portion 212, and one end of the second jaw 22 away from the convex block 221 is connected with a second connecting portion 222. The first connecting portion 212 and the second connecting portion 222 are both slidably connected in the sliding groove 11, and the first connecting portion 212 and the second connecting portion 222 are in the sliding groove 11 and are symmetric about the vertical central axis relative to the sliding groove 11; when the motion structure 10 lifts vertically, the first connecting portion 212 and the second connecting portion 222 approach or move away from each other along the sliding groove 11, so that the first jaw 21 and the second jaw 22 clamp or expand synchronously.

[0060] It can be understood that the driving mechanism 30 can drive the motion structure 10 to lift vertically. This mechanism simplifies the motion path of the jaws and reduces unnecessary complex mechanical actions. The vertical lifting design enables the jaws to reach the working position more quickly and accurately. The sliding groove 11 on the motion structure 10 allows the first jaw 21 and the second jaw 22 to move freely in the vertical direction. At the same time, the symmetric layout of the first jaw 21 and the second jaw 22 ensures the consistency of clamping.

[0061] In a specific solution, the sliding groove 11 is a T-shaped groove; the first connecting portion 212 and the second connecting portion 222 have the same structure, and both include a connecting rod 2121 and pulleys 2122 rotatably connected to both ends of the connecting rod. One end of the first jaw 21 away from the groove 211 and one end of the second jaw 22 away from the convex block 221 are both provided with connecting holes A. The connecting rod 2121 is connected in the connecting hole A, and the pulleys 2122 respectively abut against both ends of the connecting hole A.

[0062] Referring to FIG. 5, the pulley 2122 can adopt a rolling bearing. The cross-sectional shape of the T-shaped groove allows the connecting portion to move stably within the groove. There are supports corresponding to the pulley 2122 on both sides of the T-shaped groove. When the connecting portion moves vertically up and down, it is not easy to shake or deviate from the track. This stability enables the precise and stable movement of the jaws; and due to the cross-sectional shape of the T-shaped groove, when the first connecting portion 212 and the second connecting portion 222 reach the end limit positions of the sliding groove 11 (i.e., both ends of the sliding groove 11), the design of the T-shaped groove just abuts against the first jaw 21 and the second jaw 22, ensuring that the first connecting portion 212 and the second connecting portion 222 will not slide out of the groove. The setting of the T-shaped groove itself has the property of preventing the connecting portion from falling off. Therefore, no additional limiting mechanism is required in the entire clamping device 100, so as to reduce the number of components and save costs.

[0063] Furthermore, the clamping device 100 further includes a fixing structure 40. The fixing structure 40 includes a top plate 41 and a side plate 42 connected to the end of the top plate 41. The top plate 41 and the side plate 42 enclose an installation space U; the moving structure 10 is arranged within the installation space U and can move up and down along the inner wall of the side plate 42. A second installation hole 421 is provided on the side plate 42, and a rotating shaft hole B corresponding to the second installation hole 421 is provided on the first jaw 21 and the second jaw 22; the clamping device 100 further includes a rotating shaft 50. Both ends of the rotating shaft 50 are connected to the side plate 42, and the first jaw 21 and the second jaw 22 are rotatably connected to the rotating shaft 50 through the rotating shaft hole B.

[0064] Specifically, the top plate 41 and the side plate 42 enclose an inverted "U" - shaped structure, and the inside thereof is the installation space U; the fixing structure 40 provides an overall structural support for the clamping device 100. The moving structure 10 is arranged to be in surface - to - surface contact with the inside of the side plate 42. This contact method provides a direct guiding effect during the up - and - down movement of the moving structure 10. The inner wall of the side plate 42 can serve as the up - and - down track of the moving structure 10 to ensure its stable up - and - down movement.

[0065] As an improvement of the embodiment of the present utility model, a guide rod (not shown in the figure) or a guide rail (not shown in the figure) can also be installed between the moving structure 10 and the side plate 42 to ensure the stability and accuracy of the moving structure 10 during the up - and - down movement.

[0066] The above-mentioned rotating shaft 50 is a columnar structure, and its two ends are connected and fixed in the second mounting holes 421 on the side plates 42; rotating shaft holes B corresponding to the second mounting holes 421 are provided on the first clamping jaw 21 and the second clamping jaw 22, and the first clamping jaw 21 and the second clamping jaw 22 are rotationally connected to the rotating shaft 50 through the rotating shaft holes B, thereby providing a common rotation axis for the first clamping jaw 21 and the second clamping jaw 22. Simply put, the first clamping jaw 21 and the second clamping jaw 22 can rotate around the rotating shaft 50 as the rotation center. When the moving structure 10 moves up and down, the first clamping jaw 21 and the second clamping jaw 22 are driven to rotate around the rotating shaft 50, thereby realizing the actions of clamping and releasing the material bag.

[0067] In an alternative solution, the driving mechanism 30 adopts a telescopic oil cylinder, which includes an oil cylinder 31 and a pull rod 32 connected to the oil cylinder 31. A third mounting hole 411 communicating with the installation space is provided on the top plate 41. The oil cylinder 31 is fixedly connected to the top plate 41, and the pull rod 32 passes through the third mounting hole 511 and is connected to the side of the moving structure 10 facing away from the sliding groove 11 to drive the moving structure 10 to move up and down. Of course, the telescopic oil cylinder is only one implementation manner for realizing the lifting of the moving structure 10, and a screw lifting mechanism, a cylinder or an electric push rod can also be used. Specifically, it can be adaptively configured according to the weight of the material bag according to the required specifications.

[0068] The embodiment of the present utility model further provides a ladle automatic feeding system (not shown in the figure), including: the clamping device 100 as described above; further including a moving device and a bag-breaking machine; the clamping device is connected to the moving device; the bag-breaking machine is arranged at the feeding port of the ladle and is used for breaking the opening of the material bag; wherein, the moving device grabs the material bag by carrying the clamping device, and after moving the material bag to the bag-breaking machine for breaking the opening, releases the material into the feeding port.

[0069] The moving device can be a robotic arm, a truss, a crane or a multi-rail device, which is responsible for carrying the clamping device 100 to move on the production line to realize the automatic transportation of the material bag. Ensure that the clamping device 100 can accurately and quickly reach the designated position. The bag-breaking machine is arranged at the feeding port of the ladle and is responsible for performing the bag-breaking operation on the material bag. The opening of the bag is quickly and accurately cut through the cutting, so that the material in the material bag can smoothly slide into the ladle. The specific working process can be as follows:

[0070] Step S1, the moving device carries the clamping device 100 and moves to the material bag storage area;

[0071] Step S2, the clamping device 100 is tilted to grab and clamp the material bag;

[0072] Step S3, the moving device carries the clamping device 100 and the material bag and moves to the bag-breaking machine;

[0073] Step S4: The bag breaker performs a bag-breaking operation on the bottom of the material bag to release the material.

[0074] Step S5: The moving device releases the material into the charging opening of the ladle.

[0075] Step S6: After determining that the feeding is completed according to the weight or timing, the moving device continues to carry the clamping device 100 back to the material bag storage area, and repeats the above steps to achieve continuous feeding.

[0076] Those skilled in the art should understand that if all or part of the sub-modules of the clamping device 100 involved in the products provided by the embodiments of the present invention are combined, simply changed, or mutually transformed, such as the placement and movement of each component; or the products formed thereby are integrally provided; or a detachable design; any device / device / system formed by the combined components with specific functions can replace the corresponding components of the present invention and still fall within the protection scope of the present invention.

[0077] The above-described technical features can be combined arbitrarily. Although not all possible combinations of these technical features are described, any combination of these technical features should be considered to be covered by this specification as long as such a combination does not exist in contradiction.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still adjust the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these adjustments or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A clamping device, characterized in that, Comprising: A motion structure; At least a pair of jaw groups connected to the motion structure, each pair of jaw groups including a first jaw and a second jaw; A driving mechanism capable of driving the motion structure to move so that the first jaw and the second jaw can be unfolded or clamped with each other; wherein, a groove is provided at the end of the first jaw away from the motion structure, and a convex block is provided at the end of the second jaw away from the motion structure. When the first jaw and the second jaw are in the clamping state, the convex block can be received in the groove.

2. The clamping device according to claim 1, characterized in that, The groove is a V-shaped groove, and the convex block is a triangular protrusion; in the clamping state, the convex block is received in the groove and the grooves are arranged crosswise.

3. The clamping device according to any one of claims 1 or 2, characterized in that The first jaw and the second jaw have the same structure. The first jaw includes a first connecting arm and a second connecting arm, and the first connecting arm and the second connecting arm are angularly connected. The groove is provided at the end of the second connecting arm facing away from the first connecting arm.

4. The clamping device according to claim 3, wherein The motion structure can drive the first jaw and the second jaw to be unfolded or clamped synchronously through lifting.

5. The clamping device according to claim 4, wherein, The driving mechanism is connected to the motion structure to drive the motion structure to vertically lift and lower; one side of the motion structure away from the driving mechanism includes at least one sliding groove; one end of the first jaw away from the groove is connected with a first connecting part, and one end of the second jaw away from the convex block is connected with a second connecting part. The first connecting part and the second connecting part are both slidably connected in the sliding groove, and the first connecting part and the second connecting part are in the sliding groove and are symmetric about the vertical central axis relative to the sliding groove; when the motion structure vertically lifts and lowers, the first connecting part and the second connecting part approach or move away from each other along the sliding groove, so that the first jaw and the second jaw are clamped or unfolded synchronously.

6. The clamping device according to claim 5, characterized in that The sliding groove is a T-shaped groove; the first connecting part includes a connecting rod and pulleys rotatably connected to both ends of the connecting rod. Connecting holes are provided at one end of the first jaw away from the groove and one end of the second jaw away from the convex block. The connecting rod is connected in the connecting hole, and the pulleys respectively abut against both ends of the connecting hole.

7. The clamping device according to claim 5, characterized in that, The clamping device further includes a fixing structure, and the fixing structure includes a top plate and a side plate connected to the end of the top plate. The top plate and the side plate enclose an installation space; the motion structure is arranged in the installation space and can lift and lower along the inner wall of the side plate.

8. The clamping device according to claim 7, wherein Second installation holes are provided on the side plate, and shaft holes corresponding to the second installation holes are provided on the first jaw and the second jaw; The clamping device further includes a rotating shaft, both ends of the rotating shaft are connected to the second installation holes, and the first jaw and the second jaw are rotatably connected to the rotating shaft through the shaft holes.

9. The clamping device according to claim 8, wherein The driving mechanism includes an oil cylinder and a pull rod connected to the oil cylinder. A third installation hole communicating with the installation space is provided on the top plate. The oil cylinder is fixedly connected to the top plate, and the pull rod passes through the third installation hole and is connected to the side of the motion structure away from the sliding groove to drive the motion structure to lift and lower.

10. An automatic ladle feeding system, characterized in that, Comprising: The clamping device according to any one of claims 1 to 9; A moving device, the clamping device being connected to the moving device; A bag breaker, which is arranged at the charging opening of the ladle and is used for breaking the bag; wherein, the moving device grabs the bag by carrying the clamping device, and after the bag is moved to the bag breaker for breaking, the material is released into the charging opening.

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