Pneumatic plate shearing machine

Abstract

The utility model relates to a pneumatic plate shearing machine which comprises a shearing table, a receding groove is formed in the shearing table, an installation frame is installed above the shearing table through a pneumatic downward pressing mechanism, a cutter is fixed to the position, right opposite to the receding groove, below the installation frame, and the pneumatic downward pressing mechanism is used for pushing the installation frame to conduct downward pressing. An outer sleeve is vertically fixed to the side portion of the installation frame, a guide rod is installed in a guide hole in the bottom of the outer sleeve in a penetrating mode, a piston attached to the inner wall of the outer sleeve is fixed to the end, located in the outer sleeve, of the guide rod, and a lower pressing disc is fixed to the end, located outside the outer sleeve, of the guide rod; springs are fixed to the tops of the pistons. The pneumatic pressing mechanism pushes the mounting frame and the cutter to move downwards to synchronously drive the outer sleeve to move downwards, the pressing disc can be pressed on a plate to play a role in positioning and prevent the plate from deviating due to stress during cutting, along with continuous pressing of the pneumatic pressing mechanism, the pressing degree of the pressing disc on the plate is higher, manual pressing is replaced, and the working efficiency is improved. The positioning is more stable, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of plate shears, in particular to a pneumatic plate shear. Background Art

[0002] A shearing machine is a processing equipment used for cutting plate-like materials. The shearing machine mainly includes a frame, a cutter and a drive device. When cutting the plate material, the plate material is first placed on the placement table of the frame, and then the cutter is pushed down by the drive mechanism to achieve cutting of the plate material.

[0003] When cutting, in order to avoid the sheet material being deflected by the pressure of the cutter, the sheet material needs to be positioned when cutting.

[0004] At present, the sheet is mainly positioned by workers holding and pressing the sheet by hand. Manual pressing has poor stability, is time-consuming and labor-intensive, and the hands are close to the cutter, which is unsafe. Secondly, the cutting debris generated during sheet cutting falls on the placement table, and the sheet is pressed on the debris, which is easy to warp or shift during cutting, affecting the cutting quality of the sheet. Utility Model Content

[0005] The utility model aims to provide a pneumatic shearing machine which has good plate positioning effect and can blow away debris, and effectively solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0007] A pneumatic shearing machine comprises a shearing table, which is provided with a clearance groove. A mounting frame is installed above the shearing table through a pneumatic pressing mechanism, and a cutting knife is fixed below the mounting frame and directly opposite to the clearance groove. The pneumatic pressing mechanism is used to push the mounting frame downward; an outer sleeve is vertically fixed to the side of the mounting frame, and a guide rod is installed through the guide hole at the bottom of the outer sleeve, and a piston that fits the inner wall of the outer sleeve is fixed to the end of the guide rod located in the outer sleeve, and a lower pressure plate is fixed to the end of the guide rod located outside the outer sleeve; a spring is fixed to the top of the piston, and the top of the spring is fixed to the inner top wall of the outer sleeve, and an air guide port that communicates with the inside of the outer sleeve is provided on the outer sleeve near its bottom; a tube body with sealed ends is installed on the shearing table through a bracket, and the tube body extends along the length direction of the clearance groove, and air nozzles are installed on the tube body at intervals; a conduit is connected to the end of the air guide port, and the conduit is also connected to the tube body.

[0008] It can be seen that the utility model can synchronously drive the outer sleeve to move downward by pushing the mounting frame and the cutter downward through the pneumatic pressing mechanism, and the lower pressure plate can be pressed on the sheet material to play a positioning role, preventing the sheet material from being offset due to force during cutting, and as the pneumatic pressing mechanism continues to press downward, the lower pressure plate presses the sheet material more tightly, replacing manual pressing, and the positioning is more stable and safer. During the pressing process, the guide rod is pressed to push the piston to suck the external air into the outer sleeve through the air nozzle, the tube body, the conduit, and the air guide port in turn. When the mounting frame and the cutter are moved up and reset, the piston is pushed down and reset by the elastic reset action of the spring. The air in the outer sleeve is pressed out by the piston, and passes through the air guide port, the conduit and the tube body in turn, and finally sprayed out by the air nozzle, blowing away the sheet material cutting debris in the sheet material placement area above the shearing table, avoiding the debris from having an adverse effect on the next sheet material cutting, and improving the sheet material cutting quality. At the same time, the suction and blowing share the same pipeline system, and no additional pipelines are required. The overall structural layout is reasonable, and the equipment cost investment is low.

[0009] Furthermore, the air nozzle is obliquely installed on the pipe body and is aligned with the upper surface of the shearing table and is located at one side of the clearance groove.

[0010] The air nozzle is tilted to align with one side of the clearance groove. When the air nozzle blows air, the debris in the sheet material placement area above the shearing table can be smoothly blown into the clearance groove.

[0011] Furthermore, the pneumatic pressing mechanism includes a crossbeam and a pressing cylinder; the crossbeam is fixed above the shearing table through two vertically arranged columns, the pressing cylinder is fixed to the lower surface of the crossbeam, and the end of the telescopic rod of the pressing cylinder is fixedly connected to the top of the mounting frame.

[0012] The downward pressure cylinder is installed above the shearing table using columns and beams. The overall structure is strong enough. The telescopic rod on the downward pressure cylinder can be extended and retracted to drive the mounting frame and the cutter to rise and fall synchronously, providing a stable driving effect for the downward positioning of the plate by the downward pressure plate and the cutting processing of the plate by the cutter.

[0013] Furthermore, limit seats are fixed on both sides of the mounting frame respectively; the limit seats are correspondingly sleeved on the columns on the same side and can slide up and down along the outside of the columns.

[0014] When the mounting frame moves up and down, the limit seat can follow the mounting frame to slide and rise and fall synchronously along the column, play a limiting and guiding role for the mounting frame, and ensure that the mounting frame is raised and lowered smoothly enough.

[0015] Furthermore, a collecting box is provided below the shearing table, and an upper opening of the collecting box faces the yielding slot.

[0016] The debris blown into the clearance groove falls downward under the action of gravity. Since the upper end of the collection box is aligned with the clearance groove, the debris can fall into the collection box smoothly, realizing the collection of the debris, which is convenient for centralized processing of the debris in the later stage.

[0017] Furthermore, the conduit is a metal hose.

[0018] The metal hose is used as the conduit, which has high wear resistance, will not be damaged easily, and has a long service life. At the same time, the conduit is easy to bend and can adapt to the lifting and lowering displacement of the outer sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the outer sleeve in the utility model;

[0021] Figure 3 This is a schematic diagram of the installation of the mounting frame structure in the utility model;

[0022] Figure 4 This is a schematic diagram of the installation of the pipe body structure in the utility model;

[0023] Figure 5 It is a schematic diagram of the angle A structure.

[0024] In the figure: 1. shearing table; 11. clearance groove; 2. pneumatic pressing mechanism; 21. column; 22. beam; 23. pressing cylinder; 231. telescopic rod; 3. mounting frame; 31. limit seat; 4. cutter; 5. outer sleeve; 51. guide hole; 52. guide rod; 53. piston; 54. spring; 55. pressing plate; 56. air guide port; 57. conduit; 6. tube body; 601. bracket; 61. air nozzle; 7. collection box. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5The utility model provides a pneumatic shearing machine, including a shearing table 1, a clearance groove 11 is provided on the shearing table 1, a mounting frame 3 is installed above the shearing table 1 through a pneumatic pressing mechanism 2, a cutting knife 4 is fixed below the mounting frame 3 and directly opposite to the clearance groove 11, and the pneumatic pressing mechanism 2 is used to push the mounting frame 3 downward; an outer sleeve 5 is vertically fixed to the side of the mounting frame 3, a guide rod 52 is installed through the guide hole 51 at the bottom of the outer sleeve 5, and a piston 5 that fits the inner wall of the outer sleeve 5 is fixed to the end of the guide rod 52 located in the outer sleeve 5 3. A lower pressure plate 55 is fixed on the end of the guide rod 52 located outside the outer sleeve 5; a spring 54 is fixed on the top of the piston 53, and the top of the spring 54 is fixed to the top inner wall of the outer sleeve 5. An air guide port 56 communicating with the inside of the outer sleeve 5 is provided near the bottom of the outer sleeve 5; a tube body 6 sealed at both ends is installed on the shearing table 1 through a bracket 601, and the tube body 6 extends along the length direction of the give way groove 11, and air nozzles 61 are installed on the tube body 6 at intervals; a guide tube 57 is connected to the end of the air guide port 56, and the guide tube 57 is also connected to the tube body 6.

[0027] When using this device to cut the sheet material, the sheet material is placed above the shearing table 1 to ensure that the sheet material to be cut is aligned with the cutter 4. The pneumatic pressing mechanism 2 is used to push the mounting frame 3 and the cutter 4 downward, and the mounting frame 3 drives the outer sleeve 5 to move downward synchronously, and the lower pressure plate 55 will be pressed on the sheet material to press the sheet material tightly, thereby achieving a positioning effect and preventing the sheet material from being offset due to force during cutting. At the same time, as the pneumatic pressing mechanism 2 continues to press downward, the guide rod 52 is compressed and retracted into the outer sleeve 5, and the piston 53 is pushed upward. The spring 54 is compressed to provide elastic force to ensure that the lower pressure plate 55 presses the sheet material tighter and tighter. During the upward movement of the piston 53, the external air is sucked into the outer sleeve 5 through the air nozzle 61, the tube body 6, the conduit 57, and the air guide port 56 in turn. The pneumatic pressing mechanism 2 pushes the mounting frame 3 to continue to press downward, and finally pushes the cutter 4 to cut the sheet material, thereby achieving cutting of the sheet material. The pneumatic pressing mechanism 2 is reset, driving the mounting frame 3 and the cutter 4 to move upward. Under the elastic force of the spring 54, the piston 53 is pushed downward to reset. The air in the outer sleeve 5 is pressed out by the piston 53, passes through the air guide port 56, the conduit 57 and the tube body 6 in sequence, and is finally ejected by the air nozzle 61 to blow away the sheet material cutting debris in the sheet material placement area above the shearing table 1, so as to avoid the debris from having an adverse effect on the next sheet material cutting.

[0028] The air nozzle 61 is installed obliquely on the tube body 6 and is aligned with the upper surface of the shearing table 1 and is located on one side of the clearance groove 11. Figure 5 The angle between the extension line of the central axis of the positioning air nozzle 61 and the upper surface of the shearing table 1 is A, 30°≤A≤50°, so that the air nozzle 61 is tilted and aligned with one side of the clearance groove 11. When the air nozzle 61 blows air, the debris in the sheet material placement area above the shearing table 1 can be smoothly blown into the clearance groove 11.

[0029] Specifically, the pneumatic pressing mechanism 2 includes a crossbeam 22 and a pressing cylinder 23; the crossbeam 22 is fixed above the shearing table 1 through two vertically arranged columns 21, the pressing cylinder 23 is fixed to the lower surface of the crossbeam 22, and the end of the telescopic rod 231 of the pressing cylinder 23 is fixedly connected to the top of the mounting frame 3. The pressing cylinder 23 is installed above the shearing table 1 using the columns 21 and the crossbeam 22, and the overall structure is strong enough. Through the telescopic rod 231 on the pressing cylinder 23, the mounting frame 3 and the cutter 4 can be driven to rise and fall synchronously, providing a stable driving effect for the pressing plate 55 to press down and position the plate and the cutter 4 to cut the plate.

[0030] Specifically, the two sides of the mounting frame 3 are respectively fixed with limit seats 31; the limit seats 31 are correspondingly sleeved on the pillars 21 on the same side, and can slide up and down along the outside of the pillars 21. When the mounting frame 3 moves up and down, the limit seats 31 can follow the mounting frame 3 to slide and rise and fall synchronously along the pillars 21, play a limit guide role for the mounting frame 3, and ensure that the mounting frame 3 is sufficiently smooth when it is raised and lowered.

[0031] Specifically, a collecting box 7 is provided below the shearing table 1, and the upper end opening of the collecting box 7 faces the clearance groove 11. The debris blown into the clearance groove 11 falls downward under the action of gravity, and since the upper end of the collecting box 7 is aligned with the clearance groove 11, the debris can smoothly fall into the collecting box 7, so that the debris can be collected and convenient for centralized processing of the debris later.

[0032] Specifically, the conduit 57 is a metal hose, which has high wear resistance, is not easily damaged, and has a long service life. At the same time, the conduit 57 is easy to bend and can adapt to the lifting and displacement of the outer sleeve 5.

[0033] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A pneumatic shearing machine, comprising a shearing table (1), wherein the shearing table (1) is provided with a clearance groove (11), characterized in that: A mounting frame (3) is installed above the shearing table (1) via a pneumatic pressing mechanism (2), a cutting knife (4) is fixed below the mounting frame (3) and directly opposite the clearance groove (11), and the pneumatic pressing mechanism (2) is used to push the mounting frame (3) downward; An outer sleeve (5) is vertically fixed to the side of the mounting frame (3); a guide rod (52) is installed through a guide hole (51) at the bottom of the outer sleeve (5); a piston (53) is fixed to the end of the guide rod (52) located inside the outer sleeve (5) and is in contact with the inner wall of the outer sleeve (5); a lower pressure plate (55) is fixed to the end of the guide rod (52) located outside the outer sleeve (5); A spring (54) is fixed to the top of the piston (53), and the top of the spring (54) is fixed to the inner top wall of the outer sleeve (5). The outer sleeve (5) is provided with an air guide port (56) near its bottom end, which is communicated with the interior of the outer sleeve (5); A tube body (6) with sealed ends is mounted on the shearing table (1) via a bracket (601); the tube body (6) extends along the length direction of the clearance groove (11); and air nozzles (61) are mounted on the tube body (6) at intervals; The end of the air guide port (56) is in communication with a conduit (57), and the conduit (57) is also in communication with the tube body (6).

2. A pneumatic shearing machine according to claim 1, characterized in that: The air nozzle (61) is installed obliquely on the tube body (6), aligned with the upper surface of the shearing table (1) and located on one side of the clearance groove (11).

3. A pneumatic shearing machine according to claim 1, characterized in that: The pneumatic pressing mechanism (2) comprises a crossbeam (22) and a pressing cylinder (23); The crossbeam (22) is fixed above the shearing table (1) via two vertically arranged columns (21), the downward pressing cylinder (23) is fixed to the lower surface of the crossbeam (22), and the end of the telescopic rod (231) of the downward pressing cylinder (23) is fixedly connected to the top of the mounting frame (3).

4. A pneumatic shearing machine according to claim 3, characterized in that: Limiting seats (31) are respectively fixed on both sides of the mounting frame (3); The limiting seat (31) is correspondingly sleeved on the column (21) on the same side, and is capable of sliding up and down along the outside of the column (21).

5. The pneumatic shearing machine according to claim 1, characterized in that: A collection box (7) is provided below the shearing table (1), and an upper opening of the collection box (7) faces the clearance groove (11).

6. A pneumatic shearing machine according to claim 1, characterized in that: The conduit (57) is a metal hose.

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