CN220297508U

CN220297508U - Wire saw tensioning structure

Info

Publication number: CN220297508U
Application number: CN202321831456.3U
Authority: CN
Inventors: 林伟; 苏良友; 程文霖; 官震宇; 郑凯平
Original assignee: Fujian Tianshiyuan Intelligent Equipment Co ltd
Current assignee: Fujian Tianshiyuan Intelligent Equipment Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-05
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses a wire saw tensioning structure, wherein a tensioning wheel assembly is arranged on a sliding assembly to move; the spring seat is connected with the tensioning wheel assembly through a tension sensor, and two groups of buffer springs are sleeved outside the spring seat; the output end of the tension cylinder is provided with a connecting plate, and the connecting plate is positioned between two groups of buffer springs; the control unit is used for receiving the signal value of the tension sensor and comparing the signal value with a preset value, and outputting a comparison result to control the tension cylinder to stretch; the pressure sensor and the proportional valve are matched to form a tension closed-loop control system, so that the constant pressure in the running process of the equipment is ensured, a buffer spring is used for controlling a pressure curve, and the jitter of the rope saw is buffered and absorbed.

Description

Wire saw tensioning structure

Technical Field

The utility model relates to the technical field of stone machinery, in particular to a wire saw tensioning structure.

Background

At present, equipment for cutting luxury stone in stone industry mainly comprises a rope saw and a saw blade cutting machine, a wire saw mainly comprises a small wire diameter, small cutting amount, small loss, higher yield and smaller cutting dust, and is gradually accepted by masses, and a tensioning structure of the wire saw mainly comprises servo tensioning, heavy hammer tensioning and hydraulic tensioning.

The tensioning structure of the existing equipment is high in rigidity, the shake of a wheel train in operation cannot be absorbed, the final shake force acts on a wire, the diamond wire shake in the cutting process is caused, the cutting precision and the wire service life are affected, the cost of a servo system and a hydraulic system structure is high, the weight structure is limited by the space size, and the device cannot be used on equipment with large tension.

Because the cutting amount of the equipment is constant, minerals with different components are often mixed in stone materials, the hardness of the minerals is different, when the minerals with high hardness are encountered, the actual tension of a rope can be increased, and the tension structure (such as a heavy hammer) for fixing the tension can enable the actual tension of the equipment to exceed an ideal value, so that the service life of a diamond wire is reduced.

Disclosure of Invention

The utility model aims to provide a wire saw tensioning structure, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a wire saw tensioning structure comprising:

the tensioning wheel assembly is arranged on the sliding assembly to move;

the spring seat is connected with the tensioning wheel assembly through a tension sensor, and two groups of buffer springs are sleeved outside the spring seat;

the output end of the tension cylinder is provided with a connecting plate, and the connecting plate is positioned between the two groups of buffer springs;

and the control unit is used for receiving the signal value of the tension sensor, comparing the signal value with a preset value, and outputting a comparison result to control the tension cylinder to stretch.

Preferably, the sliding assembly comprises a seat plate, a wire rail assembly and a tensioning sliding table, wherein the tensioning wheel assembly is arranged on the tensioning sliding table, the seat plate is relatively fixedly arranged, and the tensioning sliding table is in linear sliding fit on the seat plate through the wire rail assembly.

Preferably, the tension cylinder and the seat plate are relatively fixedly arranged, and the tension cylinder further comprises a guide mechanism, wherein the guide mechanism guides the connecting plate to linearly move.

Preferably, the lifting mechanism is further arranged, the lifting mechanism drives the lifting frame to lift, and the tension cylinder and the seat plate are fixed on the lifting frame.

Preferably, the device further comprises an air source, a proportional valve, a reversing valve and a throttle valve which are sequentially connected, wherein the throttle valve is provided with two groups of throttle valves which are respectively connected with an air inlet and an air outlet of the tension cylinder, and the other ends of the two groups of throttle valves are respectively connected with two paths of output ends of the reversing valve.

Preferably, a filter assembly is arranged between the air source and the proportional valve.

Preferably, the air source is replaced by a hydraulic oil source, and the tension cylinder is replaced by a hydraulic cylinder.

Preferably, the tail end of the spring seat is provided with a pull ring.

Preferably, the reversing valve adopts a five-position three-way middle-sealing electromagnetic valve.

Preferably, the filter assembly employs a filter triplet.

Compared with the prior art, the utility model has the beneficial effects that:

the closed-loop control of the tensioning force can ensure that the device achieves an ideal cutting state under any working condition, the spring controls the tension curve, the tension curve is softened, the flexible tension structure is used for absorbing the vibration of the device, the stability of the device is ensured, the cutting precision is improved, the service life of a diamond wire is prolonged, and the pneumatic scheme is controlled. And the tail end of the spring seat is integrated with a pull ring, so that the pull force sensor is calibrated, and the structure is compact and the integration level is high.

The pressure sensor and the proportional valve are matched to form a tension closed-loop control system, so that the constant pressure in the running process of the equipment is ensured, a buffer spring is used for controlling a pressure curve, and the jitter of the rope saw is buffered and absorbed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a proportional valve scheme of the present utility model;

FIG. 4 is a pressure relief valve scheme of the present utility model;

FIG. 5 is a schematic illustration of flexible tension control of the present utility model;

FIG. 6 is a schematic diagram of a rigid tension control according to the present utility model;

FIG. 7 is a schematic diagram of an application of the present utility model.

1. A tensioning cylinder; 2. a throttle valve; 3. a reversing valve; 4. a proportional valve; 5. a filter assembly; 6. a gas source; 7. a pressure reducing valve; 8. a tensioner assembly; 9. tensioning the sliding table; 10. a tension sensor; 11. a buffer spring; 12. a connecting plate; 13. a spring seat; 14. a guide mechanism; 15. a wire rail assembly; 16. a seat plate; 100. a lifting mechanism; 300. a lifting frame; 600. and (5) plate materials.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 7, the lifting mechanism 100 is mounted on a column, the lifting mechanism 100 may adopt a screw transmission structure, and the lifting frame 300 is horizontally arranged and fixed on a slide plate in the screw transmission structure, so that the lifting mechanism 100 drives the lifting frame 300 to vertically lift; the lifting frame 300 is hung on the left side with a pair of driving wheel assemblies, the right side with a pair of tensioning wheel assemblies, the lifting frame 300 is hung below with a pair of rope pressing mechanisms, during operation, the driving wheel assemblies and the tensioning wheel groups are hung with cutting wire saws, the wire ropes are wound around the rope pressing mechanisms, the plate 600 is in place, and the lifting mechanism 100 drives the lifting frame 300 to move the cutting plate 600 up and down.

As shown in fig. 1-6, the seat plate 16 is fixed on the lifting frame 300, the tensioning cylinder 1 is installed on the seat plate 16, the wire rail assembly 15 comprises a guide rail and a sliding block, the guide rail is fixed on the seat plate 16, the tensioning sliding table 9 is fixed on the sliding block, the tensioning wheel assembly 8 is fixed on the tensioning sliding table 9, and accordingly the tensioning sliding table 9 is in left-right linear sliding fit on the seat plate 16 through the wire rail assembly 15;

the tension sliding table 9 is provided with a tension sensor 10 at the traction side, the tension sensor 10 is provided with a spring seat 13 in the traction direction, two buffer springs 11 are arranged on the outer side of the spring seat 13 in a penetrating mode, a connecting plate 12 is clamped between the two buffer springs 11, and the movable end of the tension cylinder 1 is connected with the connecting plate 12.

The tensioning cylinder 1 and the spring seat 13 transfer force by a connecting plate 12, and a guiding mechanism 14 is arranged in the middle of the connecting plate 12 for assisting guiding. The guide mechanism 14 includes a guide rod and a guide seat which are linearly slidably engaged, the guide rod being fixed to the seat plate 16, and the guide seat being fixed to the connection plate 12. The stretching direction of the tensioning cylinder 1 is consistent with the moving direction of the tensioning wheel assembly 8.

The air source 6 is filtered by the filter assembly 5 after air is discharged, the air pressure is regulated by the proportional valve 4, and then the air is connected and conveyed into the tensioning cylinder 1 through the reversing valve 3 and one of the throttle valves 2;

simultaneously, the air outlet end of the tensioning cylinder 1 is discharged through the other throttle valve 2 and the reversing valve 3; thereby realizing the stability of the control action.

Before the device is used, the tensioning mechanism needs to use a portable scale, and a pulling force value is generated by pulling the pull ring of the spring seat 13, so as to calibrate the pulling force sensor 10.

The reversing valve 3 can be reversed so that the flow directions of the two groups of throttle valves 2 are alternated, thereby realizing the control of the extension and retraction of the tensioning cylinder 1. The reversing valve 3 has a middle seal such that the tensioning cylinder 1 stops telescoping.

During operation, the tensioning wheel assembly 8 is hung with diamond wires, the tensioning cylinder 1 drives the connecting plate 12 to move rightwards, the guide mechanism 14 plays a guide role in the moving process, the connecting plate 12 extrudes the buffer spring 11 on the right side, so that the spring seat 13 is driven to move rightwards, the spring seat 13 transmits pulling force to the tension sensor 10, the tension sensor 10 drives the tensioning wheel assembly 8 to move rightwards, the wire rail assembly 15 plays a guide role during the tensioning wheel assembly, and the pressure of the tensioning cylinder 1 is kept constant after the tension sensor 10 reaches a preset value in the control unit.

The pressure of the tensioning cylinder 1 is controlled by the proportional valve 4, and the pressure sensor 10 feeds back the tensioning force in real time in the cutting process of the equipment, and the tensioning force of the equipment is controlled to be a numerical value by being matched with the proportional valve 4 for adjustment. The buffer spring 11 is used for absorbing the shake of the tensioning wheel assembly 8 during operation, enabling the device to run stably, controlling the tension curve, enabling the control to be stable, and buffering during tensioning.

In the working process, tension can be fluctuated, the fluctuated tension can be fed back in real time through the tension sensor 10, and then the tension can be adjusted through the proportional valve 4, so that the tension can be kept in an ideal range.

When the rope is replaced, the tensioning cylinder 1 is retracted, the piston end moves leftwards, the connecting plate 12 is driven to move leftwards, the connecting plate 12 presses the buffer spring 11 on the left side leftwards, the spring seat 13 is pushed leftwards, the spring seat 13 pushes the tension sensor 10 leftwards, the tension sensor 10 pushes the tensioning sliding table 9 leftwards, and therefore the tensioning wheel assembly 8 is pushed to move leftwards, and the rope is replaced.

The throttle valve 2 adopts an exhaust throttle valve; the reversing valve 3 adopts a five-position three-way middle sealing electromagnetic valve; the filter assembly 5 employs a filter triplet.

As shown in fig. 5 and 6, the tension wave diagrams in the flexible tension control system and the rigid tension control system in the dynamic constant tension system can be seen that the tension curve of the flexible tension control is smoother.

The system also comprises a processing unit, wherein the processing unit can adopt a PLC or a central processing unit; the processing unit is electrically connected with the reversing valve 3 and the tension sensor 10, the reversing of the reversing valve 3 realizes the extension and retraction of the tensioning cylinder 1, and after the reversing valve 3 reaches a set position, the reversing valve 3 is in the middle position to realize the blocking.

Embodiment two:

including the whole contents of embodiment one, except that: the tensioning cylinder 1 can also be replaced by a hydraulic cylinder; meanwhile, the air source 6 is replaced by a hydraulic oil source; the throttle valve 2 is replaced by a hydraulic throttle valve.

If from an economical point of view, the tension does not need to be fed back in real time, the proportional valve 4 can be replaced by the pressure reducing valve 7, or the tension sensor 10 can be removed at the same time, so that the most economical configuration is achieved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A wire saw tensioning structure, characterized in that: comprising the following steps:

the tensioning wheel assembly (8), the tensioning wheel assembly (8) is installed on the sliding assembly to move;

the spring seat (13), the spring seat (13) is connected with the tensioning wheel assembly (8) through the tension sensor (10), and two groups of buffer springs (11) are sleeved outside the spring seat (13);

the tension cylinder (1), the output end of the tension cylinder (1) is provided with a connecting plate (12), and the connecting plate (12) is positioned between two groups of buffer springs (11);

the control unit is used for receiving the signal value of the tension sensor (10) and comparing the signal value with a preset value, and outputting a comparison result to control the tension cylinder (1) to stretch.

2. The wire saw tensioning arrangement of claim 1, wherein: the sliding assembly comprises a seat plate (16), a wire rail assembly (15) and a tensioning sliding table (9), wherein the tensioning wheel assembly (8) is arranged on the tensioning sliding table (9), the seat plate (16) is relatively fixedly arranged, and the tensioning sliding table (9) is in linear sliding fit on the seat plate (16) through the wire rail assembly (15).

3. The wire saw tensioning arrangement of claim 2, wherein: the tension cylinder (1) and the seat board (16) are relatively and fixedly arranged, and the tension cylinder further comprises a guide mechanism (14), and the guide mechanism (14) guides the connecting plate (12) to move linearly.

4. The wire saw tensioning arrangement of claim 2, wherein: the lifting mechanism (100) drives the lifting frame (300) to lift, and the tension cylinder (1) and the seat plate (16) are fixed on the lifting frame (300).

5. The wire saw tensioning arrangement of claim 1, wherein: the automatic air-conditioning device is characterized by further comprising an air source (6), a proportional valve (4), a reversing valve (3) and a throttle valve (2) which are sequentially connected, wherein the throttle valve (2) is provided with two groups which are respectively connected with an air inlet and an air outlet of the tension cylinder (1), and the other ends of the throttle valve (2) are respectively connected with two paths of output ends of the reversing valve (3).

6. The wire saw tensioning arrangement of claim 5, wherein: a filtering component (5) is arranged between the air source (6) and the proportional valve (4).

7. The wire saw tensioning arrangement according to claim 5 or 6, characterized in that: the air source (6) is replaced by a hydraulic oil source, and the tension cylinder (1) is replaced by a hydraulic cylinder.

8. The wire saw tensioning arrangement of claim 5, wherein: and the tail end of the spring seat (13) is provided with a pull ring.

9. The wire saw tensioning arrangement of claim 5, wherein: the reversing valve (3) adopts a five-position three-way middle-sealing electromagnetic valve.

10. The wire saw tensioning arrangement of claim 6, wherein: the filtering component (5) adopts a filtering triplet.