Stone cutting line pressing guide wheel structure with stretching function

Abstract

The stone cutting line pressing guide wheel with the stretching function is structurally characterized in that the pressing guide wheel is horizontally and longitudinally mounted perpendicular to a cutting line, the cutting line can be pressed and guided, and a line group in the middle section can be greatly lower than driving wheels at the two ends, so that the contact surface of the line in a pressing guide wheel groove is increased, and the cutting line is not prone to jumping out of the groove in the moving process; the pressing guide wheel assembly comprises a lifting and transverse moving mechanism which can control the pressing guide wheel to vertically lift and transversely move, so that low-position cutting and cutting at the same level with the driving wheel can be realized; wherein one group of upper driving wheels is designed to have an independent lifting function, and can synchronously lift along with the three driving wheels and can also independently lift, so that a pressed wire group is prevented from being loosened in the lifting process of the pressing guide wheel assembly. The synchronous rotation and stop of the pressure guide wheel and the driving wheel can be realized by arranging a synchronous wheel synchronous belt on a main shaft of the driving wheel and connecting the synchronous belt with the pressure guide wheel, or arranging a synchronous motor to stop and rotate together with the driving wheel; the cutting adaptability can be expanded, and the problem that a stone fret saw is difficult to machine ultra-long stone and small stone is solved.

Description

Technical Field

[0001] This utility model relates to the field of technical improvement of stone wire saw cutting equipment, and to the improvement technology of cutting wire skipping defects and one machine being able to cut ultra-long and short materials. Specifically, it is a stone cutting wire pressure guide wheel structure with extension function. Background Technology

[0002] Diamond wire saws utilize a hydraulic motor or electric motor as the driving force to rotate a steel wire (cutting wire) with diamond particles attached, achieving high-speed motion. The diamond particles then grind and cut the stone. The diamond on the surface of the diamond particles is one of the hardest materials in the world, easily grinding away at the stone to achieve the cutting purpose.

[0003] Existing wire saw cutting machines are typically gantry-type structures, consisting of a frame made up of four main support columns. The cutting wire mounted on the frame is operated by four main power motors. The wear-resistant rubber surface of the four drive wheels of the stone wire saw has several shallow guide grooves. During the initial cutting, for example, if 100 grooves are used, when the cutting wears down to a certain depth, the wire is moved to a spare groove on one side for cutting. When all the spare grooves are worn down, the machine is disassembled, leveled, and re-grooved before reinstalling the machine for cutting, maximizing the use of the rubber surface of the wheels. The wear-resistant rubber and wire grooves on the newly installed guide wheels must be compatible with the drive wheels on both sides. Therefore, the diamond wire in the guide wheel grooves is very prone to jumping into the spare grooves during cutting due to the shallow grooves and uneven stone. This is especially true when cutting multiple stones simultaneously, where the wire is more likely to jump into the grooves. This jumping not only affects the thickness and flatness of the cut slab but can also cause the diamond wire to break. Summary of the Invention

[0004] To address the aforementioned issue of the cutting line easily jumping out of the groove when a pressure guide wheel is added, the inventor has developed and improved a solution that effectively solves the problem of the line jumping out of the groove within the pressure guide wheel. This solution is highly practical and can be applied to the cutting of one or more stones to prevent jumping out of the groove. Specifically, this utility model is implemented as follows: a stone cutting line pressure guide wheel structure with extension function has at least one set of pressure guide wheel connecting seats (6), which are installed on the crossbeams (51) on both sides of the movement direction of the cutting line (1). The pressure guide wheel connecting seat (6) includes: a pressure guide wheel (3), which is installed horizontally and longitudinally between the two crossbeams (51) in a direction perpendicular to the cutting line (1), and is used to provide downward pressure on the cutting line (1) through the cutting line (1) so that the line increases the contact surface in the groove; a pressure guide wheel connecting seat, which is set at both ends of the pressure guide wheel (3) and is installed on the two crossbeams (51) respectively, including a lifting mechanism, which can drive the pressure guide wheel (3) to move up and down in the vertical direction; a transmission or active drive mechanism, which is integrated into the quick-release guide wheel seat installed on the pressure guide wheel connecting seat (6) and connected to the pressure guide wheel (3), and can actively or passively drive the pressure guide wheel (3) to rotate, and the rotation speed of the guide wheel is matched with the active wheel (9) of the cutting machine.

[0005] Furthermore, one set of cutting machine drive wheels (9) is installed in two ways via an independent lifting mechanism (65): one is installed on the main machine column when the stone rises, and the other is installed on the upper end of the roller sliding block when the cutting assembly descends. This can drive the cutting line (1) to rise and fall vertically, so as to coordinate with the lifting and falling of the pressure guide wheel connecting seat (6) and rise and fall synchronously, preventing the cutting line (1) from becoming loose or too tight. That is, one set of upper drive wheels is designed to have an independent lifting function. While it can rise and fall synchronously with the three drive wheels, it can also rise and fall independently to avoid the problem of the pressure line assembly becoming loose during the lifting and falling of the pressure guide wheel assembly.

[0006] Furthermore, the lifting mechanism includes a guide wheel connecting seat (6) that can be quickly installed and removed, and the two ends of the guide wheel connecting seat (6) are equipped with quick-installation components that can be quickly installed and quickly removed. The quick-installation components are installed on two crossbeams (51) and can quickly install and fix or remove the two ends of the guide wheel connecting seat (6).

[0007] Furthermore, the lifting mechanism is installed on two crossbeams (51) and includes a lifting guide rod (64) and a lifting screw reducer (63); a pressure guide wheel connecting seat is installed on the quick-release connecting seat at the lower end of the lifting guide rod (64), and the two ends of the pressure guide wheel connecting seat can be quickly installed and fixed or disassembled for the pressure guide wheel (3); the lifting screw reducer (63) can drive the rotation of the lifting screw sleeve to transmit power to the lifting screw to control the vertical lifting of the guide wheel connecting seat.

[0008] Furthermore, a lateral movement reducer (62) is also installed on the lifting mechanism. The lateral movement reducer (62) drives the lateral movement gear to rotate. The lateral movement gear meshes with the rack installed on the crossbeam (51), so that the entire lifting mechanism can move laterally left and right along the crossbeam (51) to meet the needs of arranging stones of different sizes. The rack and linear guide rail inside the shield installed on the outside of the crossbeam (51) are used for guiding, stabilizing and lateral movement of (6). A dustproof corrugated cover is installed on the outside of the crossbeam (51) to cover the rack and lateral movement gear. The dustproof corrugated cover is multi-segmented and installed along the crossbeam, and can be compressed or extended with the lateral movement of the lifting mechanism, which can prevent dust, debris or moisture from entering during the stone cutting process.

[0009] Furthermore, the transmission or active drive mechanism is an independent drive motor capable of actively driving the rotation of the guide wheel; or,

[0010] The transmission or active drive mechanism is a transmission mechanism, which is installed on the pressure guide wheel connecting seat. It is synchronously connected to the cutting machine drive wheel (9) through the transmission synchronous wheel (8) and the transmission belt (7) to make the guide wheel rotate.

[0011] Furthermore, a downwardly extending magnet mounting beam (11) is installed at the bottom of the pressure guide wheel connecting seat (3). The magnet mounting beam (11) is distributed and installed along both sides of the pressure guide wheel (3). The magnetic block (10) is installed on the magnet mounting beam (11) and faces downward toward the cutting line (1). The horizontal height of the magnetic block (10) is higher than the height of the lowest point of the pressure guide wheel (3), so that the magnetic block (10) is close to the cutting line (1) but does not contact the cutting line (1).

[0012] Furthermore, the pressure guide wheel connecting seat (6) is a set, installed above the two stones (2), and the pressure guide wheel connecting seat (6) can be lowered and placed between the two stones (2).

[0013] Furthermore, the pressure guide wheel connecting seat (6) is in two sets. When cutting two pieces of stone (2), the extension assembly near the middle is moved to the top between the two pieces of stone (2), and only the middle extension assembly is in operation. The other set of extension assemblies is removed from the pressure guide wheel (3) and is in standby mode.

[0014] When used to cut three stones (2), the extension assembly is moved to both ends, the two sets of extension assemblies are in operation and positioned above the spacing between adjacent stones (2);

[0015] When cutting a piece of stone (2), the two sets of pressure guide wheel connecting seats (6) rise to the highest position for standby, and are higher than the height of the cutting line (1).

[0016] Furthermore, the crossbeam (51) is an arched beam frame, which is installed on the frame of each cutting machine drive wheel (9) of the cutting equipment and can rise and fall synchronously with the rise and fall of the cutting machine drive wheel (9); the pressure guide wheel connecting seat (6) is installed on the crossbeam (51).

[0017] The working principle and beneficial effects of this utility model are as follows: The pressure guide wheel is installed horizontally and longitudinally in a direction perpendicular to the cutting line, providing guidance for longer cutting lines. The lifting mechanism of the pressure guide wheel connecting seat can drive the pressure guide wheel to move up and down in the vertical direction. At the beginning of cutting, because the cutting line is displaced downwards, the cutting line located at the extension assembly is pressed into an oblique line, allowing it to contact and cut the stone first. Compared with the overall cutting part, the cutting depth at the extension assembly is deeper, and the cutting line is located in a deeper groove, allowing the cutting line to better fit the stone and prevent it from jumping out of the normal cutting trajectory, thereby greatly reducing the probability of groove jumping. As the cutting depth further develops, the extension assembly gradually retracts electrically as it approaches the bottom of the stone, keeping the cutting line horizontal and preventing it from cutting to the bottom plate. At this point, the depth is sufficient, and subsequent cutting will not cause groove jumping, thus effectively avoiding the occurrence of groove jumping. The lifting screw reducer of the extension assembly drives the lifting screw sleeve to rotate through the gear set, thereby driving the lifting screw to rise and fall, causing the pressure guide wheel connecting seat to move up and down along the lifting guide rod. This lifting method ensures that the position of the pressure guide roller is controllable and adjustable during the lifting process, effectively preventing the cutting line from jumping out of the groove. When the transmission or active drive mechanism is an independent drive motor, it can actively drive the guide roller to rotate, and the rotation speed of the guide roller matches the active wheel of the cutting machine. This means that the pressure guide roller can coordinate with the overall movement of the cutting machine, ensuring that the cutting line receives a uniform and stable driving force during movement. If the transmission or active drive mechanism is a transmission mechanism, it can synchronously drive the guide roller to rotate through a transmission synchronous pulley and transmission belt, similarly ensuring the synchronous movement of the pressure guide roller and the active wheel of the cutting machine. This synchronous transmission method allows the cutting line to maintain a stable operating state throughout the cutting process, reducing the risk of cutting line deviation and jumping out of the groove due to inconsistent speeds. The magnetic strip installed at the bottom of the pressure guide roller connecting seat is close to but does not contact the cutting line. The magnetic field generated by the magnetic strip exerts a certain attraction, i.e., constraint, on the cutting line. The magnetic force of the magnetic strip will, to a certain extent, hinder the deviation of the cutting line, constraining the cutting line within a relatively stable area, playing an auxiliary limiting role and further reducing the possibility of jumping out of the groove. The magnetic strip does not directly contact the cutting wire, avoiding frictional wear and ensuring the lifespan of the cutting wire. It also uses the magnetic field to constrain the cutting wire's position without interfering with its normal movement, achieving an anti-skid function. This also reduces the risk of damage and breakage to the cutting wire caused by contact. The number and working state of the guide roller connecting seats can be flexibly configured according to the number and layout of the stones being cut. For example, when cutting two stones, one of the extension assemblies near the middle moves to operate above the space between the two stones, while the other is on standby; when cutting three stones, the extension assembly operates above the spacing between adjacent stones.This layout allows for targeted guidance and tensioning of the cutting line in different cutting situations, constraining the cutting line at key locations between stones to prevent it from jumping off the cutting surface due to the stone's influence. When cutting a single stone, both sets of pressure guide roller connecting seats are ready and raised to their highest position, above the height of the cutting line, and the pressure guide rollers are disassembled. This avoids potential interference from the pressure guide rollers to the cutting line when their function is not needed, while also protecting the pressure guide rollers and the cutting line, ensuring they function at the appropriate time, guaranteeing the stability of the cutting process, and preventing unnecessary jumping off the cutting surface. Currently, stone wire saws have two types of cutting feed: a lowering cutting assembly or a rising material feeding mode. Regardless of the type, this utility model's stone cutting line pressure guide roller structure with extension function can be installed by simply replacing the upper and lower arched crossbeams and the lifting assembly, thus expanding the cutting adaptability.

[0018] As can be seen, the stone cutting line guide wheel structure technology with extension function of this utility model effectively prevents the cutting line from jumping out of the groove, ensures the stability of the cutting process, improves the cutting quality, reduces the risk of cutting line damage and breakage, and extends the service life of the cutting line by means of the guide wheel providing cutting line guidance and tension, the guide wheel connecting seat precisely lifting and lowering to drive the guide wheel, the transmission or active drive mechanism to ensure uniform and stable driving force of the cutting line, the magnetic field of the magnetic strip constrains the cutting line, and the working state of the guide wheel connecting seat can be flexibly configured according to the number of stones. It can also avoid unnecessary interference, protect the guide wheel and the cutting line, improve the overall effect and efficiency of stone cutting operation, and solve the problem of the five guide wheel diamond wire saw applied for by Xiamen Pinhe Machinery, where the three wire wheels at the bottom are mounted on the same horizontal plane, causing the wire in the groove of the middle guide wheel to always jump out of the groove during cutting. Attached Figure Description

[0019] Figure 1 A front view of the structure for processing the double-set pressure guide rollers of the stone cutting line pressure guide roller structure with extension function provided by this utility model;

[0020] Figure 2 A top view of the structure for processing the double-set pressure guide rollers of the stone cutting line pressure guide roller structure with extension function provided by this utility model;

[0021] Figure 3 This is a front view of the structure of the independent lifting mechanism of this utility model that drives the drive wheel of the cutting machine to lift.

[0022] Figure 4 This is a schematic diagram of the structure of the pressure guide wheel of this utility model, which rises to its highest position and does not participate in the operation.

[0023] Figure 5A top view of the structure for processing a single set of pressure guide wheels in the stone cutting line pressure guide wheel structure with extension function provided by this utility model;

[0024] Figure 6 The main structural view of the stone cutting line pressure guide wheel structure with extension function provided by this utility model for cutting a whole piece of stone;

[0025] Figure 7 A top view of the stone cutting line pressure guide wheel structure with extension function provided by this utility model for cutting a whole piece of stone;

[0026] Among them: 1—cutting line, 2—stone, 3—pressure guide wheel, 4—main power motor, 5—main machine column, 51—crossbeam, 6—pressure guide wheel connecting seat, 62—lateral movement reducer, 63—lifting screw reducer, 64—lifting guide rod, 65—independent lifting mechanism, 7—transmission belt, 8—transmission synchronous pulley, 9—cutting machine drive wheel, 10—magnetic strip, 11—magnet mounting beam, 12—stone mounting timber. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0028] Example 1: With Figure 1 For example, the wire saw in the diagram is equipped with a stone cutting guide wheel structure with extension function to cut three pieces of stone 2. At this time, although two sets of guide wheel connecting seats 6 are installed, the middle set of guide wheel connecting seats 6 is not working and the guide wheel 3 does not need to be installed. The guide wheel 3 is installed in a detachable manner. The other two sets of guide wheels 3 are installed above the gap between the stones 2. In actual use, the two sets of control guide wheel connecting seats 6 are lowered to the required height position, so that the cutting lines 1 at both ends are pressed into a bevel angle, and each cutting line 1 is aligned with the cutting position and in contact with the guide wheel 3. The guide wheel 3 also provides guidance and power for the cutting lines 1, and the guide wheel 3 also rotates synchronously to provide power. As the entire wire saw assembly moves down for cutting, the crossbeam 51 and the guide wheel connecting seats 6 also move down synchronously to cut the stone 2. At this time, as Figure 1As shown, cutting line 1 first contacts and cuts the middle stone 2, then begins cutting one corner of the other two stones 2. As it moves downwards, it gradually begins cutting the entire stone 2. This method ensures that cutting line 1 contacts the middle stone 2 first, resulting in a short contact area and reducing the likelihood of skipping grooves. Similarly, the other two stones 2 are cut from one corner first, with a small cutting area, also reducing the likelihood of skipping grooves. When all stones 2 are in contact with cutting line 1, the groove depth of the first cut is already deep enough, further reducing the likelihood of skipping grooves. Once the overall cutting depth reaches a safe depth, the guide roller connecting seat 6 can gradually rise, leveling cutting line 1 until the simultaneous cutting of the three stones 2 is completed, greatly improving cutting efficiency. It should be noted that... Figure 2 As shown, the width of the guide wheel connecting seat 6 is smaller than the gap between the stones 2; in this embodiment, the lifting mechanism is installed on two crossbeams 51, including a lifting guide rod 64 and a lifting screw reducer 63; the guide wheel connecting seat is installed on the quick-release connecting seat at the lower end of the lifting guide rod 64, and the two ends of the guide wheel connecting seat can be quickly installed and fixed or disassembled; the lifting screw reducer 63 can drive the rotation of the lifting screw sleeve to transmit to the lifting screw to control the vertical lifting of the guide wheel connecting seat.

[0029] Furthermore, a lateral movement reducer 62 is also installed on the lifting mechanism. The lateral movement reducer 62 drives the lateral movement gear to rotate. The lateral movement gear engages with a rack mounted on the crossbeam 51, allowing the entire lifting mechanism to move laterally left and right along the crossbeam 51. A dustproof corrugated cover is installed on the outside of the crossbeam 51 to shield the rack and lateral movement gear. The dustproof corrugated cover is multi-segmented and installed along the crossbeam, and can compress or extend as the lifting mechanism moves left and right, preventing dust, debris, or moisture from entering during the stone cutting process. The lateral movement mechanism of the lateral movement gear and rack in this embodiment is a prior art movement control structure, and its structural principle will not be described in detail.

[0030] The lifting screw reducer 63 is connected to the control system of the cutting host for overall control. In this embodiment, the pressure guide wheel 3 rotates through a transmission mechanism mounted on the pressure guide wheel connecting seat. The transmission mechanism is synchronously connected to the cutting machine's drive wheel 9 via a transmission synchronous pulley 8 and a transmission belt 7, causing the pressure guide wheel 3 to rotate. This method ensures the synchronization of movement between the pressure guide wheel 3 and the cutting machine's drive wheel 9, maintaining a stable operating state of the cutting line 1 throughout the cutting process and reducing the risk of cutting line 1 deviation and skipping due to inconsistent speeds. Preferably, the power of the guide wheel can also be controlled by an independent drive motor.

[0031] Although the stone installation timber 12 is placed at the bottom of the stone 2 to raise its height, in order to prevent the wire saw from touching the bottom support, after cutting to a certain depth, the pressure guide wheel connecting seat 6 can gradually rise back to make the cutting line 1 return to flat.

[0032] Example 2: Improvements were made based on Example 1, such as... Figure 3 , 4 As shown, when two stones 2 need to be cut simultaneously, the middle set of pressure guide roller connecting seats 6 is activated, while the other set of pressure guide roller connecting seats 6 is put into standby after removing the pressure guide roller 3, or is raised to the highest position and put into standby. The middle pressure guide roller connecting seat 6 is aligned with the gap between the two stones 2. The middle pressure guide roller connecting seat 6 provides vertical downward pressure and support, so that the cutting line 1 forms two cutting bevels, which can complete the synchronous cutting of the two stones 2 and also prevent the groove from jumping.

[0033] Example 3: As Figure 5 , 6 As shown, when cutting a piece of stone 2, both sets of pressure guide roller connecting seats 6 are either removed from the pressure guide rollers 3 and put into standby mode, or both are raised to their highest position and put into standby mode. At this time, the cutting line 1 is a horizontal straight line, which can also achieve the cutting of a whole piece of stone 2. It is suitable for cutting larger pieces of stone 2.

[0034] Example 4: A downwardly extending magnet mounting beam 11 is installed at the bottom of the pressure guide wheel connecting seat. The magnet mounting beam 11 is distributed along both sides of the pressure guide wheel 3. Magnetic strips 10 are installed on the magnet mounting beam 11 and face downwards towards the cutting line 1. The horizontal height of the magnetic strips 10 is higher than the lowest point of the pressure guide wheel 3, so that the magnetic strips 10 are close to the cutting line 1 but do not contact it. The magnetic field generated by the magnetic strips 10 will exert a certain attraction force, i.e., constraint force, on the cutting line 1. The magnetic force of the magnetic strips 10 will, to a certain extent, hinder the deviation of the cutting line 1, constraining the cutting line 1 within a relatively stable area, playing an auxiliary limiting role, and further reducing the possibility of skipping. The magnetic strips 10 do not directly contact the cutting line 1, avoiding friction and wear between them. This ensures the service life of the cutting line 1 and, without interfering with the normal movement of the cutting line 1, uses the magnetic field to constrain the position of the cutting line 1, which is beneficial for preventing skipping.

[0035] Example 5: In any of the above embodiments, one set of cutting machine drive wheels 9 is mounted on the main unit column via an independent lifting mechanism 65, which can drive the cutting wire 1 to rise and fall vertically, so as to coordinate with the lifting and falling of the pressure guide wheel connecting seat 6, preventing the cutting wire 1 from becoming slack or overly taut. During the cutting process, in order to make the pressure guide wheel at the lower position of the initial cut and the running operation rise to the same level as the drive wheels at both ends for cutting, the rising pressure guide wheel must keep the wire group wound in the four drive wheels from becoming slack. To avoid the wire group of the rising pressure guide wheel becoming slack during operation, the set of cutting machine drive wheels 9 in the upper left corner is mounted on the main unit column via an independent lifting mechanism 65. When the wire saw cuts to the required depth, the pressure guide wheel will rise to the same level as the drive wheels on both sides for cutting. At the same time, the drive and pressure guide wheels in the upper left corner that can be raised and lowered rise simultaneously. That is, the independent lifting mechanism 65 can adapt to the lifting and falling of the pressure guide wheel connecting seat 6, rising and falling with it, so as to maintain the uniform tension of the entire cutting wire, neither too slack nor too taut. The independent lifting mechanism is an existing lifting component, such as a screw lifting kit installed on the main column, with the cutting machine's drive wheel assembly mounted on its lifting component. A drive unit, typically a motor-driven one, is installed on the screw lifting kit and connected to the screw via a reducer or direct connection to rotate the screw. This rotation drives the helical transmission pair nut within the lifting component to move linearly along the screw's axial direction, thus achieving lifting. Alternatively, other lifting mechanisms, such as electric lifting rods, can also be used. The lifting form and structure will not be elaborated further. Currently, there are two types of feed methods for stone wire sawing: stone-rising or cutting assembly-lowering. The cutting wire pressing wheel structure with extension function and the overall design of the liftable drive wheel in this embodiment can be applied to both types of stone wire saw equipment.

[0036] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A stone cutting line pressure guide wheel structure with extension function, characterized in that, A pressure guide wheel connecting seat (6) having at least one set is mounted on a crossbeam (51) on both sides of the moving direction along the cutting line (1), the pressure guide wheel connecting seat (6) comprising: The pressure guide roller (3) is installed horizontally and longitudinally between the two crossbeams (51) in a direction perpendicular to the cutting line (1) to provide downward pressure and guidance to the cutting line (1) through the cutting line (1); The pressure guide wheel connecting seat (6) is set at both ends of the pressure guide wheel (3) and is installed on two crossbeams (51) respectively. It includes a lifting mechanism that can drive the pressure guide wheel (3) to move up and down in the vertical direction. The transmission or active drive mechanism integrates the quick-release guide wheel seat installed on the pressure guide wheel connecting seat (6) and connects to the pressure guide wheel (3). It can actively or passively drive the pressure guide wheel (3) to rotate, and the rotation speed of the guide wheel matches the active wheel (9) of the cutting machine.

2. The stone cutting line pressure guide wheel structure according to claim 1, characterized in that, One set of cutting machine drive wheels (9) are installed in two ways through independent lifting mechanisms (65): one is installed on the main column when the stone rises, and the other is installed on the upper end of the roller sliding block when the cutting assembly descends. It can drive the cutting line (1) to rise and fall in the vertical direction, so as to coordinate with the lifting and falling of the pressure guide wheel connecting seat (6) to prevent the cutting line (1) from becoming loose or too tight. One set of upper drive wheels is designed to have independent lifting function. It can also rise and fall synchronously with the three drive wheels, and can also rise and fall independently to avoid the problem of the pressure line group becoming loose during the lifting and falling of the pressure guide wheel assembly.

3. The stone cutting line pressure guide wheel structure according to claim 1, characterized in that, The lifting mechanism is installed on two crossbeams (51) and includes a lifting guide rod (64) and a lifting screw reducer (63); a pressure guide wheel connecting seat is installed on the quick-release connecting seat at the lower end of the lifting guide rod (64), and the two ends of the pressure guide wheel connecting seat can be quickly installed and fixed or disassembled for the pressure guide wheel (3); the lifting screw reducer (63) can drive the rotation of the lifting screw sleeve to transmit power to the lifting screw to control the vertical lifting of the guide wheel connecting seat.

4. The stone cutting line pressure guide wheel structure according to claim 3, characterized in that, The lifting mechanism is also equipped with a transverse movement reducer (62), which drives the transverse movement gear to rotate. The transverse movement gear meshes with the rack installed on the crossbeam (51), so that the entire lifting mechanism can move laterally left and right along the crossbeam (51). A rack and linear guide inside a shield mounted on the outside of the crossbeam (51) are used for guiding, stabilizing and lateral movement of (6).

5. The stone cutting line pressure guide wheel structure according to claim 1, characterized in that, The transmission or active drive mechanism is an independent drive motor that can actively drive the rotation of the guide wheel; or, The transmission or active drive mechanism is a transmission mechanism. The transmission mechanism is installed on the pressure guide wheel connecting seat and is synchronously connected to the cutting machine active wheel (9) through the transmission synchronous wheel (8) and the transmission belt (7) so that the guide wheel and the active wheel rotate and stop at the same time.

6. The stone cutting line pressure guide wheel structure according to claim 1, characterized in that, The bottom of the pressure guide wheel connecting seat is equipped with a downwardly extending magnet mounting beam (11). The magnet mounting beam (11) is distributed and installed along both sides of the pressure guide wheel (3). The magnetic block (10) is installed on the magnet mounting beam (11) and faces downward toward the cutting line (1). The horizontal height of the magnetic block (10) is higher than the height of the lowest point of the pressure guide wheel (3), so that the magnetic block (10) is close to the cutting line (1) but does not contact the cutting line (1).

7. The stone cutting line pressure guide wheel structure according to claim 1, characterized in that, The pressure guide wheel connecting seat (6) is a set, installed above the two stones (2), and the 64 guide rod connecting part on the pressure guide wheel connecting seat (6) can be lowered and placed between the two stones (2).

8. The stone cutting line pressure guide wheel structure according to claim 1, characterized in that, The pressure guide wheel connecting seat (6) consists of two sets. When cutting two pieces of stone (2), the extension assembly near the middle is moved to the top between the two pieces of stone (2), and only the middle extension assembly is in operation. The other set of extension assemblies is removed from the pressure guide wheel (3) and put into standby mode. When used to cut three stones (2), the extension assembly is moved to both ends, the two sets of extension assemblies are in operation and positioned above the spacing between adjacent stones (2); When cutting a piece of stone (2), the two sets of pressure guide wheel connecting seats (6) rise to the highest position for standby, and are higher than the height of the cutting line (1).

9. The stone cutting line pressure guide wheel structure according to claim 1, characterized in that, The crossbeam (51) is an arched beam frame, which is installed on the frame of each cutting machine drive wheel (9) of the cutting equipment and can rise and fall synchronously with the rise and fall of the cutting machine drive wheel (9); the pressure guide wheel connecting seat (6) is installed on the crossbeam (51).

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