A sawing machine with a pressing device

Abstract

The utility model belongs to sawing -bed equipment technical field, concretely relates to a kind of down-pressing device for sawing -bed, including slide rail, push mechanism and down-pressing mechanism, the slide rail is set to two, and the opposite side of two slide rails is slidably installed with sliding block, two ends of two The slide rail is equipped with firm plate, the push mechanism is set to two groups of symmetry, and two groups of push mechanism are respectively installed on sliding block and one firm plate, another The firm plate is equipped with top hydraulic rod, the down-pressing mechanism is arranged on two sliding hole plates, and two The sliding hole plate is fixed on two groups of push mechanism.The utility model is through the cooperation of push mechanism and down-pressing mechanism, ensure that workpiece group is subjected to even pressure in each direction, form tight extrusion state between pipe fitting or reinforcing steel bar, significantly improve clamping stability, effectively avoid workpiece displacement and vibration in sawing process, guarantee cutting accuracy and saw blade service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of sawing equipment, specifically relating to a downward pressing device for a sawing machine. Background Technology

[0002] In existing technologies, most sawing machines use two relatively moving push plates to clamp and fix the workpiece, and then use a hydraulic rod on the upper side to push the pressure plate to achieve downward pressure and clamping of the workpiece. However, this traditional clamping method has obvious defects: when cutting multiple workpieces such as bundles of steel bars or stacks of pipes, due to the large number of workpieces and their irregular arrangement, it is difficult to achieve uniform force by relying solely on the horizontal clamping force of the push plates on both sides and the vertical downward pressure of the pressure plate on the upper side. This results in insufficient clamping force for some workpieces or even complete lack of clamping. Specifically, for bundles of steel bars, the pressure plate can only press down on the top layer of steel bars, while the lower layer of steel bars are in a state of slight movement due to the lack of effective restraint; for stacked pipes, the push plates can only contact the outermost pipes, and the inner pipes are prone to displacement during the cutting process. This problem of local clamping or uneven distribution of downward pressure will cause the workpiece to vibrate slightly during sawing. The vibration is transmitted to the saw blade through the workpiece, which not only increases the swing amplitude of the saw blade and the roughness of the cutting surface, but also accelerates saw blade wear and even causes the risk of tooth breakage. Therefore, this utility model proposes a downward pressing device for a saw to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a downward pressing device for a sawing machine, which can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] This utility model provides a downward pressing device for a saw, including a slide rail, a pushing mechanism, and a pressing mechanism. The slide rail is provided as two rails, and a slider is slidably installed on the opposite side of the two slide rails. A stabilizing plate is installed at both ends of the two slide rails. The pushing mechanism is provided as two symmetrical sets, and the two sets of pushing mechanisms are respectively installed on the slider and one of the stabilizing plates. A clamping hydraulic rod is installed on the other stabilizing plate, and the protruding end of the clamping hydraulic rod passes through the stabilizing plate and is fixed to the side of the slider. The pressing mechanism is provided on two sliding plate, and the two sliding plate are fixed on the two sets of pushing mechanisms.

[0006] The pushing mechanism includes a pushing plate and an arc plate. The pushing plate is L-shaped and fixed to the slider or one of the stabilizing plates. The arc plate is movably sleeved in the flip-hole, and the flip-hole is opened on the pushing plate. The arc plate is provided with an elastic pushing mechanism, and the elastic pushing mechanism is connected to two corner support plates.

[0007] The pressing mechanism includes a bow support plate and a downward hydraulic rod. The downward hydraulic rod is mounted on the bow support plate, and a pressing and pushing mechanism is provided inside the bow support plate. The pressing and pushing mechanism is fixed on the extension rod of the downward hydraulic rod.

[0008] Preferably, the elastic push mechanism includes a threaded pin, a flip plate, and a push spring. The flip plate is disposed between two corner support plates, and one side is fitted into a flip hole. The threaded pin passes through one corner support plate and the flip plate and is threadedly connected to the other corner support plate. The flip plate is integrally formed on the bottom surface of the arc panel. The upper end of the push spring is fixed on the bottom surface of the flip plate away from the threaded pin, and the lower end of the push spring abuts against the push plate.

[0009] Preferably, both sides of the two sliding plates overlap the upper surfaces of the two push plates. Two sets of clamping screws are provided above the slide rail. The clamping screws pass through the sliding holes on the sliding plates and are threadedly connected to the push plates. Tensile screws are fitted inside the sliding holes of both sliding plates, and the tensile screws pass through the arch support plate and are threadedly connected to the nuts on the surface of the arch support plate.

[0010] Preferably, the downward pushing mechanism includes a pressure roller plate and a clamping plate, which are disposed inside the arch support plate. The pressure roller plate is detachably installed at the extended end of the downward pushing hydraulic rod. A spacer frame is provided on the inner side of the arch support plate, and the spacer frame is detachably installed between the clamping plate and the pressure roller plate.

[0011] Preferably, the length of the pressing plate is half the length of the pressure roller plate, and the center lines of the pressing plate and the pressure roller plate are aligned vertically.

[0012] Preferably, the arc panels and flip-holes on the two sets of pushing mechanisms are arranged symmetrically and staggered with the pressing plate as the center. The upper sides of the two arc panels are rotatably mounted with opposing rolling rollers, and the rolling rollers are laterally located below the pressing plate.

[0013] Preferably, a locking rod is movably provided at the angle between the corner support plate and the sliding hole plate. When the arc panel drives the flip plate to rotate and compresses the push spring, the locking rod can be locked into the arc groove of the arc panel, forming a three-point limit with the corner support plate and the sliding hole plate.

[0014] The beneficial effects are:

[0015] 1. This utility model, through the coordinated operation of the pushing and pressing mechanisms, allows the pressure rollers to apply inward compressive force to the rollers on both sides when the hydraulic rod is continuously pressed down. This causes the two arc-shaped plates to rotate towards each other, thereby creating a radial contraction clamping effect on the stacked pipes or bundles of reinforcing bars. Simultaneously, the axial clamping force of the clamping plate further enhances this effect. This structure ensures that the workpiece group receives uniform clamping force in all directions, creating a tight compression state between the pipes or reinforcing bars. This significantly improves clamping stability, effectively prevents workpiece displacement and vibration during sawing, and guarantees cutting accuracy and saw blade lifespan.

[0016] 2. This utility model, by setting a trip bar, can quickly limit and unlock the elastic pushing mechanism, making the device adaptable to clamping requirements under different working conditions. When processing regular workpieces, the trip bar can fix the position of the arc panel to avoid interference with the clamping process; when processing bundled workpieces, simply pulling out the trip bar can activate the adaptive clamping function, greatly improving the ease of operation and adaptability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the explosion distribution structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the explosion distribution structure of the pushing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the pressing mechanism of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Slide rail; 2. Pushing mechanism; 21. Pushing plate; 21a. Flipping hole; 22. Angle support plate; 23. Threaded pin; 24. Flipping plate; 25. Arc panel; 26. Roller; 27. Pushing spring; 28. Clamping screw; 3. Sliding hole plate; 4. Pressing mechanism; 41. Bow support plate; 42. Pushing hydraulic rod; 43. Pressure roller plate; 44. Spacer frame; 45. Clamping plate; 46. Tension screw; 5. Tightening hydraulic rod; 6. Slider; 7. Stabilizing plate; 8. Clamping rod. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figure 1-4As shown, a downward pressing device for a saw includes a slide rail 1, a pushing mechanism 2, and a pressing mechanism 4. The slide rail 1 is configured as two rails, and a slider 6 is slidably installed on the opposite side of the two slide rails 1. A stabilizing plate 7 is installed at both ends of the two slide rails 1. The pushing mechanism 2 is configured as two symmetrical sets, and the two sets of pushing mechanisms 2 are respectively installed on the slider 6 and one of the stabilizing plates 7. A clamping hydraulic rod 5 is installed on the other stabilizing plate 7, and the protruding end of the clamping hydraulic rod 5 passes through the stabilizing plate 7 and is fixed to the side of the slider 6. The pressing mechanism 4 is set on two sliding plate 3, and the two sliding plate 3 are fixed on the two sets of pushing mechanisms 2.

[0025] The pushing mechanism 2 includes a pushing plate 21 and an arc plate 25. The pushing plate 21 is L-shaped and is fixed on the slider 6 or one of the stabilizing plates 7. The arc plate 25 is movably sleeved in the flip-hole 21a and the flip-hole 21a is opened on the pushing plate 21. An elastic pushing mechanism is provided on the arc plate 25 and the elastic pushing mechanism is connected to two corner support plates 22.

[0026] The pressing mechanism 4 includes a bow support plate 41 and a pressing hydraulic rod 42. The pressing hydraulic rod 42 is mounted on the bow support plate 41. A pressing and pushing mechanism is provided inside the bow support plate 41 and is fixed on the extension rod of the pressing hydraulic rod 42.

[0027] As an optional implementation, the elastic push mechanism includes a threaded pin 23, a flipping plate 24, and a push spring 27. The flipping plate 24 is disposed between two corner support plates 22, and one side is sleeved in the flipping recess 21a. The threaded pin 23 passes through one corner support plate 22 and the flipping plate 24 and is threadedly connected to the other corner support plate 22. The flipping plate 24 is integrally formed on the bottom surface of the arc panel 25. The upper end of the push spring 27 is fixed on the side of the bottom surface of the flipping plate 24 away from the threaded pin 23, and the lower end of the push spring 27 abuts against the push plate 21. The elastic force of the push spring 27 makes the flipping plate 24 always push the arc panel 25 to maintain the flipping trend. Thus, when the push plate 21 moves relative to clamp the workpiece, the arc panel 25 can adaptively flip and clamp the workpiece, which is coordinated with the downward pressure adjustment of the push hydraulic rod 42.

[0028] See attached document Figure 2 The two sliding plates 3 overlap the upper surfaces of the two push plates on both sides. Two sets of clamping screws 28 are provided above the slide rail 1. The clamping screws 28 pass through the sliding holes on the sliding plates 3 and are threadedly connected to the push plates. Tensile screws 46 are fitted in the sliding holes of the two sliding plates 3. The tensile screws 46 pass through the bow support plate 41 and are threadedly connected to the nuts on the surface of the bow support plate 41. Through this structure, the bow support plate 41 and the downward hydraulic rod 42 are stably installed between the push plates to realize the clamping operation of the workpiece.

[0029] See attached document Figure 3 and attached Figure 4The downward pressing and pushing mechanism includes a pressure roller plate 43 and a pressing plate 45. The pressure roller plate 43 and the pressing plate 45 are disposed inside the arch support plate 41. The pressure roller plate 43 is detachably installed at the extended end of the downward pushing hydraulic rod 42. A spacer frame 44 is provided on the inner side of the arch support plate 41. The spacer frame 44 is detachably installed between the pressing plate 45 and the pressure roller plate 43. The displacement of the pressure roller plate 43 when it is pressed down is limited by the spacer frame 44.

[0030] Furthermore, the length of the clamping plate 45 is half the length of the pressure roller plate 43, and the center lines of the clamping plate 45 and the pressure roller plate 43 are aligned vertically. When the clamping plate 45 presses down on the piled workpieces, it simultaneously drives the pressure roller plate 43 to cover the rolling roller 26, thereby achieving a linkage push.

[0031] Furthermore, the arc panels 25 and the flipping holes 21a on the two sets of pushing mechanisms 2 are arranged symmetrically and staggered with the clamping plate 45 as the center. The upper side of the two arc panels 25 is rotatably mounted with opposing rolling rollers 26, and the rolling rollers 26 are laterally located below the pressure plate 43. When the arc panel 25 is driven to flip by the pushing plate 21, its rolling rollers 26 are staggered with the clamping plate 45 to clamp the workpiece. At the same time, the pressure plate 43 presses down on the rolling rollers 26, further driving the arc panel 25 to tighten towards the workpiece side, improving the clamping stability.

[0032] Furthermore, a locking rod 8 is movably provided at the angle between the corner support plate 22 and the sliding hole plate 3. When the arc panel 25 drives the flip plate 24 to rotate and compress the push spring 27, the locking rod 8 can be locked into the arc groove of the arc panel 25, forming a three-point limit with the corner support plate 22 and the sliding hole plate 3, ensuring that the arc panel 25 is fixed in the non-working state and avoiding interference when the push plate moves.

[0033] Using the above structure, when clamping a pile of pipe fittings or a bundle of steel bars is required, firstly, the clamping hydraulic rod 5 is activated to push the slider 6 to move along the slide rail 1, causing the pushing plates 21 of the two sets of pushing mechanisms 2 to move towards each other to initially clamp the workpiece; after the workpiece is basically fixed, the tripping rod 8 is pulled out to release the arc panel 25. At this time, the upward pushing spring 27 pushes the flipping plate 24 to rotate around the threaded pin 23, causing the arc panel 25 to adaptively conform to the side contour of the workpiece; then, the downward pushing hydraulic rod 42 is activated to drive the clamping plate 45 and the pressure roller plate 43 to move down synchronously. The clamping plate 45 first contacts the upper surface of the workpiece to apply vertical pressure, while the pressure roller plate 43 presses down to contact the rolling roller 26 on the arc panel 25; then... As the hydraulic rod 42 continues to apply pressure, the pressure roller plate 43 applies radial compressive force to the rolling roller 26, forcing the two arc-shaped panels 25 to rotate towards each other, thereby forming a radial contraction clamping of the workpiece group. During this process, the vertical pressure of the clamping plate 45 causes the upper workpiece to sink, while the radial clamping force of the arc-shaped panel 25 promotes the close arrangement of the workpiece group. The uniform transmission of force is achieved through the rolling cooperation of the pressure roller plate 43 and the rolling roller 26, ultimately enabling the workpiece group to obtain a balanced clamping force in both the vertical and horizontal directions, forming a stable three-dimensional constraint. When it is necessary to release the clamping, the hydraulic rod 42 retracts, causing the clamping assembly to rise, pulling the arc-shaped panel 25 back to its original position, and the locking lever 8 can be inserted to lock the mechanism in place. This process achieves automated multi-directional synchronous clamping through mechanical linkage, which is particularly suitable for processing irregularly arranged bundled workpieces.

[0034] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A downward pressing device for a saw, characterized in that: The system includes a slide rail (1), a pushing mechanism (2), and a pressing mechanism (4). The slide rail (1) consists of two rails, and a slider (6) is slidably installed on the opposite side of the two slide rails (1). A stabilizing plate (7) is installed at both ends of the two slide rails (1). The pushing mechanism (2) consists of two symmetrical sets, and the two sets of pushing mechanisms (2) are respectively installed on the slider (6) and one of the stabilizing plates (7). A clamping hydraulic rod (5) is installed on the other stabilizing plate (7), and the protruding end of the clamping hydraulic rod (5) passes through the stabilizing plate (7) and is fixed to the side of the slider (6). The pressing mechanism (4) is set on two sliding hole plates (3), and the two sliding hole plates (3) are fixed on the two sets of pushing mechanisms (2). The pushing mechanism (2) includes a pushing plate (21) and an arc plate (25). The pushing plate (21) is L-shaped and is fixed on the slider (6) or one of the stabilizing plates (7). The arc plate (25) is movably sleeved in the flip-hole (21a) and the flip-hole (21a) is opened on the pushing plate (21). The arc plate (25) is provided with an elastic pushing mechanism and is connected to two corner support plates (22). The pressing mechanism (4) includes a bow support plate (41) and a pressing hydraulic rod (42). The pressing hydraulic rod (42) is mounted on the bow support plate (41). The bow support plate (41) is provided with a pressing and pushing mechanism, which is fixed on the extension rod of the pressing hydraulic rod (42).

2. The downward pressing device for a sawing machine according to claim 1, characterized in that: The elastic push mechanism includes a threaded pin (23), a flip plate (24), and a push spring (27). The flip plate (24) is disposed between two corner support plates (22) and one side is fitted into the flip hole (21a). The threaded pin (23) passes through one corner support plate (22) and the flip plate (24) and is threadedly connected to the other corner support plate (22). The flip plate (24) is integrally formed on the bottom surface of the arc panel (25). The upper end of the push spring (27) is fixed on the side of the bottom surface of the flip plate (24) away from the threaded pin (23). The lower end of the push spring (27) abuts against the push plate (21).

3. The downward pressing device for a sawing machine according to claim 2, characterized in that: Both sides of the two sliding plates (3) overlap the upper surfaces of the two push plates. Two sets of clamping screws (28) are provided above the slide rail (1). The clamping screws (28) pass through the sliding holes on the sliding plates (3) and are threadedly connected to the push plates. Tensile screws (46) are fitted in the sliding holes of the two sliding plates (3), and the tensile screws (46) pass through the arch support plate (41) and are threadedly connected to the nuts on the surface of the arch support plate (41).

4. The downward pressing device for a sawing machine according to claim 3, characterized in that: The pressing and pushing mechanism includes a pressure roller plate (43) and a pressing plate (45). The pressure roller plate (43) and the pressing plate (45) are disposed inside the arch support plate (41), and the pressure roller plate (43) is detachably installed at the extended end of the downward hydraulic rod (42). A spacer frame (44) is provided on the inner side of the arch support plate (41), and the spacer frame (44) is detachably installed between the pressing plate (45) and the pressure roller plate (43).

5. A downward pressing device for a sawing machine according to claim 4, characterized in that: The length of the pressing plate (45) is half the length of the pressure roller plate (43), and the center lines of the pressing plate (45) and the pressure roller plate (43) are aligned vertically.

6. A downward pressing device for a sawing machine according to claim 5, characterized in that: The arc panels (25) and flip-holes (21a) on the two sets of pushing mechanisms (2) are arranged symmetrically and staggered with the pressing plate (45) as the center. The upper sides of the two arc panels (25) are rotatably mounted with opposing rolling rollers (26), and the rolling rollers (26) are laterally located below the pressing plate (43).

7. A downward pressing device for a sawing machine according to claim 6, characterized in that: A trip bar (8) is movably provided at the angle between the corner support plate (22) and the sliding hole plate (3). When the arc panel (25) drives the flip plate (24) to rotate and compress the push spring (27), the trip bar (8) can be inserted into the arc groove of the arc panel (25) to form a three-point limit with the corner support plate (22) and the sliding hole plate (3).

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