Gantry type shearing device based on conveyor belt feeding mode

Abstract

The invention discloses a gantry type shearing device based on a conveying belt feeding mode. The gantry type shearing device comprises a gantry frame and a cutter tool. The front end and the rear end of the portal frame are provided with conveying belts used for continuous feeding. The portal frame is provided with a cutter assembling base and connected with the cross beam through a main power driving structure, and switching between a working position and a zero position is achieved. A cutter assembly position is arranged in the middle of the cutter assembly seat, and the cutter blade face is perpendicular to the feeding direction. The assembling seat is provided with an independent auxiliary power driving structure, so that the cutter can independently move up and down for shearing. A first pressing block and a second pressing block are arranged on the two sides of the assembling base and are made of abrasion-resistant metal, and inflatable bag cavities are formed in the inner sides of the first pressing block and the second pressing block and used for clamping and loosening materials. And the cutter is used for shearing when the pressing block clamps the materials. The automatic shearing machine has high automation degree and accuracy and is suitable for rapid and efficient shearing of recycled materials / waste materials of plastic or rubber in the waste material treatment industry.

Description

Technical Field

[0001] The invention relates to the field of large-size shearing equipment, and in particular to a gantry-type shearing device based on a conveyor belt feeding method. Background Art

[0002] Gantry shears, as a hydraulically driven shearing equipment, usually consist of a gantry, a cutter, a workbench and a conveyor mechanism. During operation, the conveyor mechanism is used to continuously feed the material and work in conjunction with the cutter installed on the gantry to perform continuous and efficient shearing operations on the material passing through the workbench area. This equipment is known for its excellent shearing efficiency and stability, and is particularly suitable for continuous shearing tasks of irregularly shaped and longer objects. It plays an important role in industrial production, especially in industries such as metal recycling and waste disposal.

[0003] In the current technical field, gantry shears are widely used to shear various materials such as metal sheets and profiles. Considering the physical properties of metal, the shearing process usually requires stronger shearing force and stronger tools. This demand has led to the design of a gantry combined with a shearing tool, which has demonstrated operational flexibility and efficiency advantages when processing large metal sheets and continuous long profiles. However, traditional gantry shears often fail to fully consider the characteristics of plastic or rubber materials when designing. In contrast, plastic or rubber materials such as pipes and tires also need to be sheared during recycling and waste treatment. Although the shearing force required for this type of plastic or rubber recycled / waste is small, due to the inherent characteristics of plastic or rubber materials, deformation and stress concentration are prone to occur during the shearing process, which may lead to problems such as uneven shearing, accelerated tool wear, and material collapse. Especially in some cross-sectional structures that are difficult to clamp and fix, the shearing effect is often unsatisfactory.

[0004] Therefore, traditional gantry shears face challenges when processing such materials, especially in terms of shear force distribution, tool durability, and material feeding stability. These problems need to be solved urgently. Developing more professional and efficient shearing equipment based on the characteristics of different materials has become an important development direction in the shearing field. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a gantry shearing device based on a conveyor belt feeding method, aiming to provide a shearing solution with a compact structure, flexible movement and the ability to efficiently process plastic or rubber materials, thereby improving the work efficiency and operational convenience of the gantry shearing device when used for shearing operations of waste plastic parts.

[0006] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0007] A gantry shearing device based on a conveyor belt feeding method comprises a gantry frame and a cutting knife; a shearing workbench is arranged in the space inside the gantry frame, and a conveyor belt for continuous feeding operation is arranged at the front end of the shearing workbench;

[0008] The gantry is provided with a cutter assembly seat, and the cutter assembly seat is connected to the gantry crossbeam through a main power drive structure; through the main power drive structure, the position of the cutter assembly seat moves up and down as a whole to realize the position switching between the working position and the zero position; a tool assembly position is reserved in the middle position of the cutter assembly seat, and when the cutter tool is assembled on the tool assembly position, the blade direction of the tool is perpendicular to the feeding direction of the conveyor belt; the cutter assembly seat is provided with an independent auxiliary power drive structure on the tool assembly position, and through the auxiliary power drive structure, the cutter tool assembled on the tool assembly position can move up and down independently to realize the shearing operation of the cutter tool;

[0009] The cutter assembly seat is provided with a first pressing block and a second pressing block on the feed side and the return side of the cutter assembly position, respectively. The first pressing block and the second pressing block are elastic material pressing blocks, and an inflatable bag cavity is provided inside the first pressing block and the second pressing block, and the clamping and loosening of the material are realized by cyclically inflating and deflating the inflatable bag cavity;

[0010] The cutter tool performs a shearing operation on the material under the condition that the first pressing block and the second pressing block clamp the material.

[0011] As a further limitation, the conveyor belt has an adjustable feeding speed and tension.

[0012] As a further limitation, matching groove guide structures are formed on the inner side surfaces of the two side frames of the gantry and the corresponding surfaces of the cutter assembly seat.

[0013] As a further limitation, the shearing workbench is arranged below the positive projection position of the cutter assembly seat, and includes two guide rollers arranged opposite to each other, and the feeding direction of the roller bodies of the two guide rollers is consistent with the running direction of the conveyor belt; the two guide rollers are correspondingly arranged at the lower parts of the first pressure block and the second pressure block; the cutting edge of the cutter tool is correspondingly located at the 1 / 3 to 2 / 3 length position of the roller axis of the two guide rollers.

[0014] As a further limitation, the shearing workbench is height-adjustable to coordinate with the lifting and lowering of the cutter assembly seat to adjust the material passing gap during the shearing process.

[0015] As a further limitation, the main power driving structure is a hydraulic driving structure, and the auxiliary power driving structure is a hydraulic driving structure or an electric driving structure.

[0016] As a further limitation, the cutter tool is assembled and connected to the cutter assembly seat at the tool assembly position through a cutter assembly part, and the cutter assembly part is one or a combination of a threaded assembly part, a snap assembly part or a pin assembly part.

[0017] As a further limitation, the cutter tool is a bevel blade structure with an adjustable tool angle.

[0018] As a further limitation, the pressing surface of the first pressing block is formed with dot matrix protrusions, and the surface of the dot matrix protrusions is formed with anti-slip lines, and the pressing surface of the second pressing block is a plane or a convex arc surface.

[0019] As a further limitation, the device also includes an electronic control system, which is communicatively connected to the main power drive structure, the auxiliary power drive structure, the control system for inflating and deflating the inflatable bag cavity, and the conveyor belt speed and tension adjustment device; so as to control the action of the main power drive structure and the auxiliary power drive structure and adjust the inflation and deflation process of the inflatable bag cavity through preset parameters.

[0020] Beneficial effects: The gantry shearing device based on the conveyor belt feeding method of the present invention is modified according to the shearing method of the gantry shearing equipment and the material properties of the plastic or rubber material, which can achieve efficient shearing of the plastic or rubber material, while reducing material deformation and stress concentration during the shearing process. By adjusting the tool angle and optimizing the distribution of the shearing force, the present invention significantly improves the shearing quality, extends the service life of the tool, and reduces the occurrence of material collapse. In addition, the introduction of the electronic control system makes the shearing process more intelligent and automated, and the operator can easily set and adjust the shearing parameters to meet the needs of different materials and shearing tasks. This device not only improves production efficiency, but also reduces the complexity and labor intensity of the operation, providing an efficient, stable and economical solution for the shearing of waste plastic parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention.

[0022] Among them: 1. Hydraulic pump station; 2. Gantry crossbeam; 3. Stable seat; 4. Component cavity; 5. Cutter assembly seat; 6. Tool assembly position; 7. Second pressure block assembly; 8. Cutter tool; 9. Guide groove; 10. Limiting top block; 11. Guide roller; 12. Shearing workbench; 13. Gantry base; 14. Conveyor belt; 15. Drive pulley; 16. First pressure block; 17. Inflatable bag cavity; 18. Inflatable seat; 19. Compensation lining block; 20. Gantry stand. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0024] In the following embodiments, it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as herein.

[0025] See also Figure 1 A gantry shearing device based on a conveyor belt feeding method is disclosed. In this embodiment, the gantry shearing device is improved on the basis of a traditional guillotine-type gantry shear so that it can be used for shearing tasks of various medium and low hardness plastic or elastic materials such as plastics and rubber.

[0026] The gantry shearing device includes a gantry; the gantry serves as the main structure for supporting the stable operation of the entire device, and the gantry includes a frame body and a gantry base 13, wherein the frame body is composed of gantry uprights 20 vertically arranged on both sides and a gantry crossbeam 2 horizontally mounted and welded to the top of the gantry uprights 20. The structural design of the gantry enables it to have sufficient strength and rigidity to withstand the various forces generated during the shearing operation.

[0027] The gantry base 13 is firmly installed on the ground, and can be fixed in position by buried parts when necessary to ensure the stability of the overall structure of the gantry. A shearing table 12 is arranged at the space inside the frame corresponding to the surface of the gantry base 13. The shearing table 12 is a lifting structure. The working surface of the shearing table 12 includes two guide rollers 11 arranged in parallel. Both guide rollers 11 are driven rollers for receiving the materials fed on the conveyor belt 14. The lifting and positioning are achieved by the lifting motor formed in the gantry base 13, and the upper and lower position adjustment of the shearing table 12 can be used to adjust the shearing gap to meet the shearing requirements of materials of different thicknesses / sizes. The gantry base 13 is provided with a conveyor belt 14 for continuous feeding operation at the front side of the shearing table 12. The conveyor belt 14 is equipped with a transmission pulley 15 to continuously transport external materials to the shearing table 12, and the moving materials are continuously sheared by the cutting knife assembly.

[0028] The corresponding cutter assembly includes a cutter assembly seat 5 and a first pressure block assembly, a cutter tool 8 and a second pressure block assembly 7 assembled on the cutter assembly seat 5. The cutter assembly seat 5 is assembled on the lower surface of the gantry beam 2 by a perforated installation method through a stabilizing seat 3. The upper part of the stabilizing seat 3 is connected to a hydraulic pump station 1. The hydraulic pump station 1 is connected to a hydraulic cylinder as a main power driving structure on the cutter assembly seat 5 through a hydraulic pipeline. The hydraulic pump station 1 provides power for the up and down movement of the cutter. The hydraulic cylinder corresponding to the mounting hole arranged in the gantry beam 2 can drive the entire cutter assembly seat 5 to move up and down to realize the switching between the working position and the zero position. A guide groove 9 is provided on the inner side of the gantry frame 20. Correspondingly, the cutter assembly seat 5 is equipped with guide blocks that match the size of the guide groove 9 on the two outer side surfaces. These guide grooves 9 and the guide blocks together form a groove guide structure. Driven by the hydraulic pump station 1, when the hydraulic cylinder is operating, the groove guide structure can guide the cutter assembly seat 5 to perform precise linear motion along the guide groove 9, so as to ensure the precise guidance of the cutter assembly seat 5 when it moves up and down in the gantry, and also enhance the overall stability of the device, ensuring the reliability during high-speed continuous shearing operations.

[0029] In addition, the gantry is also provided with a guide groove 9 and a limit top block 10 at the tail end thereof, and the limit top block 10 can limit the up and down movement range of the cutter assembly seat 5 to ensure that it operates in a safe working area.

[0030] The cutter assembly seat 5 is formed with a tool assembly position 6 at the middle position of the bottom surface, and the cutter tool 8 is fixed on the cutter assembly seat 5 through the tool assembly position 6. In different embodiments, the assembly method of the cutter tool 8 in the tool assembly position 6 can be fixed or replaceable to meet the needs of different shearing tasks; when the fixed type is adopted, the device has better stability and shearing efficiency / effect, while the replaceable type can easily replace different types of tools to adapt to more types of shearing tasks, and can also be replaced after wear, thereby extending the service life of the tool. In different embodiments, the cutter assembly or assembly structure used in the replaceable type is one or a combination of a threaded assembly, a snap assembly or a pin assembly.

[0031] In this embodiment, the tool assembly position 6 is designed to be retractable into the interior of the cutter assembly seat 5. This structure is realized by the motor lifting mechanism formed in the component cavity 4. The telescopic structure of the motor lifting mechanism is formed as one piece with the tool assembly position 6, and by driving the tool assembly position 6 to retract inward, the up and down movement of the cutter tool 8 on the tool assembly position 6 is completed, so that the cutter tool 8 can shear the material passing through the surface of the guide roller 11.

[0032] In this embodiment, the cutter tool 8 mounted in the tool assembly position 6 adopts a bevel blade design, and the assembly position allows the cutter tool 8 to be angle-adjusted. This design ensures continuous unilateral cutting of the material, effectively reduces the stress concentration phenomenon during the downward shearing process of the cutter tool 8, and adapts to the shearing requirements of plastic or rubber materials of different thicknesses and hardnesses. Therefore, it reduces the risk of tool wear and material collapse, not only improves the safety of the tool, but also effectively protects the tool, avoiding possible damage to the tool caused by material rebound or collapse during the shearing process.

[0033] On both sides of the cutter assembly seat 5, a first pressure block assembly and a second pressure block assembly 7 are respectively arranged. The structures of the first pressure block assembly and the second pressure block assembly 7 are similar, and both include a compensation pad 19, an inflatable seat 18, an inflatable bag cavity 17 and a pressure block. The compensation pad 19 is used to compensate for the height difference of the installation position of the cutter tool 8, and the inflatable seat 18 is formed on the bottom surface of the compensation pad 19, and the lower part of the inflatable bag cavity 17 is connected to the corresponding pressure block. The bottom surface of the inflatable bag cavity 17 is formed with a corresponding pressure block.

[0034] One side of the inflatable seat 18 is equipped with an assembled air nozzle for connecting an external air supply device. By inflating or deflating the inflatable sac cavity 17, the pressure applied by the pressing block to the material can be adjusted, thereby accurately controlling the pressing force.

[0035] The pressing block is formed of an elastic material, preferably chloroprene rubber or nitrile rubber.

[0036] In this embodiment, the corresponding pressing blocks arranged on the first pressing block assembly and the second pressing block assembly 7 are both sheet-shaped structures. In different embodiments, the corresponding pressing blocks may be different in shape and size according to the form and size of the processed material to meet the requirements of different pressing forces:

[0037] If the pressing block is designed to be thinner and smaller in area, it can be used to provide a lighter pressing force, which is suitable for shearing thinner or softer materials; while when the pressing block is designed to be thicker and larger in area, it can provide a stronger pressing force, which is suitable for shearing thicker or harder materials.

[0038] This design enables the shearing device to flexibly adjust the clamping force according to the different characteristics of the material, ensuring the stability and quality of the shearing process. For thicker or harder materials, increasing the pressure of the block during the shearing process can effectively prevent the material from shifting or deforming and ensure shearing accuracy. On the contrary, for thinner or softer materials, moderately reducing the pressure can avoid unnecessary damage to the material and improve shearing efficiency.

[0039] In order to optimize the use effect of this design, the corresponding inflatable bag cavity 17 can be implanted with a spring body to maintain the structure of the outer contour, so that the inflatable bag cavity 17 in the inflated state limits the main deformation direction to the positive pressure direction of the pressure block.

[0040] In addition, the difference between the first pressing block assembly and the second pressing block assembly 7 is that the pressing surfaces of their respective pressing blocks (i.e., the lower surfaces of the first pressing block 16 and the second pressing block in the corresponding figure) are different. Specifically, the pressing surface of the first pressing block 16 is designed with unique dot matrix protrusions, and these protrusion surfaces are also equipped with anti-slip patterns; in contrast, the pressing surface of the second pressing block is a plane or a slightly convex arc surface. These are determined by the difference in the use of the two in the shearing process. The first pressing block 16 in the first pressing block assembly is mainly used to clamp the material during the shearing process to ensure that the material does not slide or shift during the shearing process, thereby ensuring the shearing accuracy. In addition to cooperating with the first pressing block 16 to clamp the material during the shearing process, the second pressing block assembly 7 can also play a role in pressing the material to prevent the sheared material from warping, stretching out or bouncing the cutting edge of the cutter tool 8 due to the rapid recovery of elasticity, while ensuring the stability of the shearing process and the flatness of the material after shearing. Protect the cutter tool 8 from damage.

[0041] On the rear side of the shearing workbench 12, a collecting trough for collecting sheared materials is also provided. The collecting trough is arranged at the rear lower part of the guide roller 11 to facilitate the sheared materials to fall directly into the collecting trough, thereby realizing rapid cleaning and recycling of the materials.

[0042] According to the structural features of this embodiment, the external material is firstly sent into the shearing workbench 12 area through the conveyor belt 14, and the cutter assembly seat is moved down to the working position by the drive of the hydraulic pump station 1; and through position correction, the two guide rollers 11 on the shearing workbench 12 are correspondingly arranged at the lower part of the first pressure block 16 and the second pressure block, and at the same time, the tip of the cutter tool 8 is correspondingly located at the 1 / 3 to 2 / 3 length position of the roller axis of the two guide rollers 11.

[0043] When performing the shearing operation, by inflating the two inflatable bladders 17, the first pressing block 16 and the second pressing block can apply appropriate pressing force to the material, thereby effectively preventing the material from slipping and deforming during the shearing process, and ensuring the accuracy and safety of the shearing operation. Subsequently, in the clamped state, the cutting tip of the cutter tool 8 is used for shearing to complete one operation cycle. Thanks to the action of the inflatable bladder 17 in the second pressing block assembly 7, the cut-off material portion will be pushed into the collection tank by the second pressing block, effectively avoiding the situation where the cut material is lifted up and rebounds to the tool. Immediately afterwards, the inflatable bladders 17 in the first pressing block assembly and the second pressing block assembly 7 begin to release pressure, and at the same time, the cutter tool 8 returns to its original position, ready for the next operation cycle.

[0044] During the shearing process, due to the specific positional relationship between the cutter tool 8 and the two guide rollers 11, the cutting operation can be completed without contacting the surface of the guide roller 11 even during the downward cutting action, thereby ensuring the shearing quality and avoiding damage to the structural components of the device.

[0045] In another embodiment, the feeding speed and tension of the conveyor belt 14 are adjustable to meet the feeding requirements of materials of different materials and to ensure the stability and uniformity of the materials during the feeding and shearing process, thereby improving the shearing quality and efficiency. At the same time, the control part of the hydraulic pump station 1, the lifting motor of the shearing workbench 12, and the running speed and tension of the conveyor belt 14 are all precisely controlled by the electronic control system, which can automatically adjust the shearing parameters such as shearing speed, tool pressure, etc. according to the preset parameter content and the type and thickness of the material to achieve the best shearing effect; at the same time, the shearing workbench 12 can also automatically adjust the height according to the set shearing parameters to meet the shearing requirements of materials of different thicknesses, and cooperate with the continuous transportation of the conveyor belt 14 to ensure the stability and consistency of the material during the shearing process.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A gantry shearing device based on a conveyor belt feeding method, characterized in that: It includes a gantry and a cutting tool; a shearing workbench is arranged in the space inside the gantry, and a conveyor belt for continuous feeding operation is arranged at the front end of the shearing workbench; The gantry is provided with a cutter assembly seat, and the cutter assembly seat is connected to the gantry crossbeam through a main power drive structure; through the main power drive structure, the position of the cutter assembly seat moves up and down as a whole to realize the position switching between the working position and the zero position; a tool assembly position is reserved in the middle position of the cutter assembly seat, and when the cutter tool is assembled on the tool assembly position, the blade direction of the tool is perpendicular to the feeding direction of the conveyor belt; the cutter assembly seat is provided with an independent auxiliary power drive structure on the tool assembly position, and through the auxiliary power drive structure, the cutter tool assembled on the tool assembly position can move up and down independently to realize the shearing operation of the cutter tool; The cutter assembly seat is provided with a first pressing block and a second pressing block on the feed side and the return side of the cutter assembly position, respectively. The first pressing block and the second pressing block are elastic material pressing blocks, and an inflatable bag cavity is provided inside the first pressing block and the second pressing block, and the clamping and loosening of the material are realized by cyclically inflating and deflating the inflatable bag cavity; The cutter tool performs a shearing operation on the material under the condition that the first pressing block and the second pressing block clamp the material.

2. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: The feeding speed and tension of the conveyor belt are adjustable.

3. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: Matching groove guide structures are formed on the inner side surfaces of the upright frames on both sides of the gantry and the corresponding surfaces of the cutter assembly seat.

4. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: The shearing workbench is arranged below the positive projection position of the cutter assembly seat, and includes two guide rollers arranged opposite to each other, and the feeding direction of the roller bodies of the two guide rollers is consistent with the running direction of the conveyor belt; the two guide rollers are correspondingly arranged at the lower parts of the first pressing block and the second pressing block; the cutting edge of the cutter tool is correspondingly located at the 1 / 3 to 2 / 3 length position of the roller axis of the two guide rollers.

5. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: The shearing workbench is height-adjustable to coordinate with the lifting and lowering of the cutter assembly seat to adjust the material passing gap during the shearing process.

6. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: The main power driving structure is a hydraulic driving structure, and the auxiliary power driving structure is a hydraulic driving structure or an electric driving structure.

7. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: The cutter tool is assembled and connected with the cutter assembly seat at the tool assembly position through a cutter assembly part, and the cutter assembly part is one or a combination of a threaded assembly part, a buckle assembly part or a pin assembly part.

8. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: The cutter tool is a bevel blade structure with adjustable tool angle.

9. The gantry shearing device based on the conveyor belt feeding method according to claim 1 is characterized in that: The pressing surface of the first pressing block is formed with dot matrix protrusions, and the surface of the dot matrix protrusions is formed with anti-slip lines, and the pressing surface of the second pressing block is a plane or an outward convex arc surface.

10. The gantry shearing device based on the conveyor belt feeding method according to claim 1, characterized in that: The device also includes an electronic control system, which is communicatively connected with the main power drive structure, the auxiliary power drive structure, the control system for inflating and deflating the inflatable bag cavity, and the conveyor belt speed and tension adjustment device; so as to control the action of the main power drive structure and the auxiliary power drive structure and adjust the inflation and deflation process of the inflatable bag cavity through preset parameters, thereby ensuring the automation and accuracy of the shearing operation.

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