Stone cutting machine

Abstract

A stone cutting machine comprises a lifting frame, a spindle box, a spindle and a cutting saw blade, the spindle box is arranged at the bottom of the lifting frame, the spindle is arranged on the spindle box, the cutting saw blade is installed on the spindle, and the stone cutting machine is characterized by further comprising a balance weight mechanism which is arranged at the bottom of the lifting frame and used for achieving balance weight of the cutting saw blade. The counterweight mechanism comprises a guide shaft, a locking piece and at least one counterweight block, the guide shaft is fixedly arranged at the bottom of the lifting frame, the counterweight blocks are movably and adjustably arranged on the guide shaft, the counterweight blocks are locked on the guide shaft through the locking piece, when the number of the cutting saw blades changes, the weight changes along with the change, and the cutting saw blades can be adjusted by adjusting the positions of the counterweight blocks on the guide shaft. The stress of the cutting saw blade is adjusted, so that the cutting and the lifting of the lifting frame are more stable.

Description

Technical Field

[0001] The utility model relates to a stone cutting machine. Background Art

[0002] The bridge-type stone cutting machines currently used in stone processing on the market are cutting larger and larger stones, and the number of saw blades hung during cutting is also increasing. Therefore, the weight of the saw blade group also increases accordingly. The saw blade group itself is heavy, and the number of saw blades hung is increasing. This leads to a large difference in force between the front and rear ends of the machine. The front end of the machine is subjected to a greater force, which greatly reduces the stability of the machine during lifting and cutting.

[0003] The stone cutters on the market usually use bolts to lock the counterweight block on the lower connecting plate, but this requires drilling multiple sets of bolt holes, and the counterweight block is inconvenient to move, making it difficult to adjust the counterweight size of the saw blade. Utility Model Content

[0004] The utility model aims to provide a stone cutter capable of adjusting the position of a counterweight block to enhance the balance.

[0005] The purpose of the utility model is achieved through the following technologies:

[0006] A stone cutting machine comprises a lifting frame, a spindle box, a spindle and a cutting saw blade, the spindle box is arranged at the bottom of the lifting frame, the spindle is arranged on the spindle box, and the cutting saw blade is installed on the spindle. The machine is characterized in that it also includes a counterweight mechanism, the counterweight mechanism is arranged at the bottom of the lifting frame for realizing the counterweight of the cutting saw blade, the counterweight mechanism comprises a guide shaft, a locking piece, and at least one counterweight block, the guide shaft is fixedly arranged at the bottom of the lifting frame, the counterweight block is movably and adjustably arranged on the guide shaft, the locking piece locks the counterweight block on the guide shaft, when the number of cutting saw blades changes, the position of the counterweight block on the guide shaft can be adjusted to adjust the force on the cutting saw blade, so that cutting and the lifting of the lifting frame are smoother.

[0007] The counterweight block is formed with a clearance hole for the guide shaft to pass through, and a locking sleeve surrounding the clearance hole is formed on the side of the counterweight block. A screw hole connected to the clearance hole is formed on the locking sleeve. The locking piece is a locking bolt arranged on the screw hole. The counterweight block is arranged on the guide shaft through the clearance hole, and the position can be quickly adjusted. When it is adjusted to a position that can balance the cutting saw blade, the counterweight block is locked on the guide shaft by passing the locking bolt through the screw hole. The operation is simple and quick.

[0008] The guide shaft extends in a direction parallel to the main shaft, so that the structure is more reasonable, the movement of the counterweight block is smoother, and the lifting frame is more stable.

[0009] It includes two counterweight mechanisms located on both sides of the spindle box, so that the lifting frame can be more stable as a whole.

[0010] The two ends of the guide shaft are fixedly arranged at the bottom of the lifting frame through two fixing seats, the fixing seats are fixedly arranged at the bottom of the lifting frame, mounting holes for the guide shaft to pass through are formed on the fixing seats, external threads are formed on the outer peripheral surfaces of the two ends of the guide shaft, locking nuts are arranged on the external threads, and the locking nuts cooperate with the external threads of the guide shaft to fix the guide shaft on the fixing seats.

[0011] A bolt hole is formed at the bottom of the lifting frame, and the fixing seat is fixed to the bottom of the lifting frame by a fixing bolt matched with the bolt hole.

[0012] The lifting frame includes an upper connecting plate, a lower connecting plate and four columns connected between the upper connecting plate and the lower connecting plate. The main spindle box and the counterweight mechanism are arranged at the bottom of the lower connecting plate. Because the main spindle box and the counterweight mechanism are both arranged at the bottom of the lower connecting plate, the overall center of gravity of the stone cutting machine can be lower and more stable.

[0013] It also includes a crossbeam, and a middle dragging body is arranged on the lifting frame. The lifting frame can be laterally moved and adjusted on the crossbeam through the middle dragging body, so that the cross-lateral movement of the lifting frame on the crossbeam can be facilitated.

[0014] A driving motor capable of driving the main shaft to rotate is arranged on the top of the lifting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model in the front view direction.

[0016] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from the side.

[0017] Figure 3 for Figure 2 Enlarged view of part A. DETAILED DESCRIPTION

[0018] A stone cutting machine comprises a lifting frame 1, a spindle box 4, a spindle 41, a cutting saw blade 3, a crossbeam 5 and a driving motor 6. The lifting frame 1 is composed of an upper connecting plate 11, a lower connecting plate 12 and four columns 13 connected between the upper connecting plate 11 and the lower connecting plate 12. A middle drag body 14 is arranged on the four columns 13. The middle drag body 14 has a connecting hole extending laterally and adapted to the crossbeam 5. The middle drag body 14 is laterally movably sleeved on the crossbeam 5, so that the lifting frame 1 can move laterally on the crossbeam 5 through the middle drag body 14. A baffle 15 is arranged at the front end of the lifting frame 1 to prevent debris from splashing.

[0019] The spindle box 4 is arranged at the bottom of the lower connecting plate 12, the spindle 41 is arranged on the spindle box 4, the cutting saw blade 3 is installed at the front end of the spindle 41, the driving motor 6 is installed on the upper connecting plate 11, and the output shaft of the driving motor 6 is connected to the spindle 41 through a transmission belt, which is used to drive the spindle 41 to rotate, so that the cutting saw blade 3 at the front end rotates to cut the stone. A protective cover 31 is arranged above the cutting saw blade 3, which can play a protective role to a certain extent, prevent people from being cut, and also prevent gravel from splashing.

[0020] Two sets of counterweight mechanisms 2 are also provided at the lower end of the lower connecting plate 12, which are symmetrically arranged on the left and right sides of the main shaft box 4, respectively. The counterweight mechanism 2 is used to realize the counterweight of the cutting saw blade 3. The counterweight mechanism 2 is composed of a guide shaft 22, a locking piece and a counterweight block 21. The guide shaft 22 is fixedly arranged at the bottom of the lifting frame 1, and the counterweight block 21 can be slidably arranged on the guide shaft 22 back and forth. The locking piece locks the counterweight block 21 on the guide shaft 22. When the number of cutting saw blades 3 changes, the weight of the cutting saw blade 3 also changes accordingly. The position of the counterweight block 21 on the guide shaft 22 can be adjusted to adjust the force on the cutting saw blade 3, so that the cutting and the lifting of the lifting frame 1 are more stable. The counterweight block 21 is formed with a clearance hole for the guide shaft 22 to pass through, and the side of the counterweight block 21 A locking sleeve 211 is formed surrounding the clearance hole, and a screw hole 212 connected to the clearance hole is formed on the locking sleeve 211. The locking piece is a locking bolt arranged on the screw hole 212. The counterweight block 21 is arranged on the guide shaft 22 through the clearance hole, and the position can be quickly adjusted. When it is adjusted to a position that can balance the cutting saw blade 3, the counterweight block 21 is locked on the guide shaft 22 by passing the locking bolt through the screw hole 212. The operation is simple and quick. The guide shaft 22 extends in a direction parallel to the main shaft 41. This structure is more reasonable, the movement of the counterweight block 21 is smoother, and the lifting frame 1 is more stable. In addition, because the spindle box 4 and the counterweight mechanism 2 are both arranged at the bottom of the lower connecting plate 12, the overall center of gravity of the stone cutter can be lower and more stable.

[0021] The two ends of the guide shaft 22 are fixedly arranged at the bottom of the lower connecting plate 12 through two fixing seats 23. The bottom of the lower connecting plate 12 is formed with bolt holes. The fixing seats 23 are fixedly arranged at the bottom of the lower connecting plate 12 through fixing bolts 231 that cooperate with the bolt holes. The fixing seats 23 are formed with mounting holes for the guide shaft 22 to pass through. The outer peripheral surfaces of the two ends of the guide shaft 22 are formed with external threads, and locking nuts 232 are arranged on the external threads. The locking nuts 232 cooperate with the external threads of the guide shaft 22 to fix the guide shaft 22 on the fixing seats 23.

[0022] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. A stone cutter, comprising a lifting frame, a spindle box, a spindle and a cutting saw blade, wherein the spindle box is arranged at the bottom of the lifting frame, the spindle is arranged on the spindle box, and the cutting saw blade is installed on the spindle, characterized in that: It also includes a counterweight mechanism, which is arranged at the bottom of the lifting frame for counterweighting the cutting saw blade. The counterweight mechanism includes a guide shaft, a locking piece, and at least one counterweight block. The guide shaft is fixedly arranged at the bottom of the lifting frame, and the counterweight block is movably and adjustably arranged on the guide shaft. The locking piece locks the counterweight block on the guide shaft.

2. A stone cutting machine according to claim 1, characterized in that: The counterweight block is formed with a clearance hole for the guide shaft to pass through, and the side of the counterweight block is formed with a locking sleeve surrounding the clearance hole, and the locking sleeve is formed with a screw hole connected to the clearance hole, and the locking piece is a locking bolt arranged on the screw hole.

3. A stone cutting machine according to claim 1, characterized in that: The guide shaft extends in a direction parallel to the main axis.

4. A stone cutting machine according to claim 1, characterized in that: It includes two counterweight mechanisms located on both sides of the spindle box.

5. A stone cutting machine according to claim 1, characterized in that: The two ends of the guide shaft are fixedly arranged at the bottom of the lifting frame through two fixing seats, the fixing seats are fixedly arranged at the bottom of the lifting frame, mounting holes for the guide shaft to pass through are formed on the fixing seats, external threads are formed on the outer peripheral surfaces of the two ends of the guide shaft, locking nuts are arranged on the external threads, and the locking nuts cooperate with the external threads of the guide shaft to fix the guide shaft on the fixing seats.

6. A stone cutting machine according to claim 5, characterized in that: A bolt hole is formed at the bottom of the lifting frame, and the fixing seat is fixed to the bottom of the lifting frame by a fixing bolt matched with the bolt hole.

7. A stone cutting machine according to claim 1, characterized in that: The lifting frame comprises an upper connecting plate, a lower connecting plate and four columns connected between the upper connecting plate and the lower connecting plate, and the main shaft box and the counterweight mechanism are arranged at the bottom of the lower connecting plate.

8. A stone cutting machine according to claim 1, characterized in that: It also includes a crossbeam, a middle dragging body is arranged on the lifting frame, and the lifting frame is arranged on the crossbeam so as to be laterally movable and adjustable through the middle dragging body.

9. A stone cutter according to any one of claims 1 to 8, characterized in that: A driving motor capable of driving the main shaft to rotate is arranged on the top of the lifting frame.

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