Protective structure of band sawing machine

Abstract

The utility model belongs to the technical field of band sawing machines, and particularly relates to a protection structure of a band sawing machine, which comprises a machine body, a base and a protective cover. The lifting seat is arranged on the bed body, and a driving belt wheel and a driven belt wheel are arranged on the lifting seat; the band saw blade is wound on the driving belt wheel and the driven belt wheel and is used for cutting a workpiece; the guide frame is arranged on the lifting seat, and a guide column is arranged on the guide frame; the two protection parts are located on the left side and the right side of the workbench correspondingly, and each protection part is provided with a slit allowing a band saw blade to penetrate through; the protection parts can form protection barriers on the two sides of the band saw blade, and compared with the prior art, the use safety of the band sawing machine is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of band saws, and in particular relates to a protective structure for band saws. Background Technology

[0002] Band saws are machine tools used for sawing various metal materials. They are usually classified into horizontal and vertical types according to their structure. For example, a horizontal band saw with chip removal function disclosed in patent application number CN202321990922.2 includes a base, a support column fixedly installed on the top of the base, a processing table fixedly installed on the top of the support column, a band saw processing mechanism on the top of the processing table, and a filter chip removal mechanism on the top of the base. The filter chip removal mechanism includes a filter component and a pump component, and the filter component is located on top of the pump component.

[0003] In the use of existing band saws, when the band saw blade breaks during high-speed operation, there is a lack of effective protective measures. The flying debris generated when the band saw blade breaks can easily cause injury to the user. At the same time, existing band saws usually use direct friction contact with the band saw blade to stop the saw blade in an emergency. However, the cutting fluid and impurities adhering to the band saw blade can easily affect the braking effect and reduce the braking effect. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a protective structure for band saws, thereby effectively improving the safety performance of band saws.

[0005] In view of this, the present invention provides a protective structure for a band saw, comprising:

[0006] A bed, wherein a worktable for placing workpieces is provided on the bed;

[0007] A lifting seat is mounted on the bed frame and has a driving pulley and a driven pulley.

[0008] A band saw blade, the band saw blade being wound around a drive pulley and a driven pulley for cutting workpieces;

[0009] A guide frame is mounted on a lifting seat, and guide columns are arranged on the guide frame;

[0010] Also includes:

[0011] The protective section has two sections located on the left and right sides of the workbench, respectively, and the protective section has a slit through which the band saw blade passes;

[0012] The protective part can form a protective barrier on both sides of the band saw blade.

[0013] In this technical solution, during the operation of the band saw, the band saw blade passes through the slits on the protective part to operate normally and cut the workpiece. When the band saw blade breaks during high-speed operation, the broken part of the band saw blade is restricted by the slits on the two protective parts and enters the protective part between the protective barriers on both sides of the band saw blade, thereby preventing the broken band saw blade from flying and causing injury to the user, effectively improving the safety of using the band saw.

[0014] In the above technical solution, the protective part further includes:

[0015] The protective cavity is located on the side of the protective section away from the cutting area of ​​the workbench;

[0016] The band saw blade passes through the protective cavity and slit during the cutting process, and the protective barrier is formed by the side walls on both sides of the protective cavity.

[0017] Furthermore, the above technical solution also includes:

[0018] A vertical pressure block, which moves up and down via a vertical drive unit mounted on a guide frame;

[0019] The vertical pressure block can press against the upper surface of the workpiece to provide vertical pressure.

[0020] Furthermore, the above technical solution also includes:

[0021] A protective cover, made of a transparent material, is disposed on the front surface of the vertical pressure block and can cover the area above and the front area of ​​the band saw blade.

[0022] Furthermore, the above technical solution also includes:

[0023] A brake disc, which is arranged on the shaft of the drive pulley and rotates synchronously with the drive pulley;

[0024] A brake caliper is located on one side of the brake disc and indirectly stops the band saw blade from operating by clamping the brake disc.

[0025] The beneficial effects of this utility model are:

[0026] 1. The protective features effectively prevent the band saw blade from scattering and injuring workers when it breaks, thus improving the safety of the band saw.

[0027] 2. The protective cover further limits the scattering of the band saw blade when it breaks, preventing injury to workers and further improving the safety of the band saw.

[0028] 3. The band saw blade is indirectly braked and brought to an emergency stop by the cooperation of the brake disc and brake caliper, which effectively ensures the braking effect. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0031] Figure 2 This is a top view structural diagram of the protective part of this utility model.

[0032] Figure 3 This is a schematic cross-sectional view of the protective part of this utility model.

[0033] Figure 4 This is a schematic diagram of the vertical pressure block structure of this utility model.

[0034] Figure 5 This is a schematic diagram of the brake disc structure of this utility model.

[0035] The markings in the diagram are as follows:

[0036] 1. Workbench; 2. Drive pulley; 3. Driven pulley; 4. Band saw blade; 5. Guide frame; 6. Guide column; 7. Protective part; 70. Slit; 71. Protective barrier; 72. Protective cavity; 8. Vertical pressure block; 9. Vertical drive unit; 10. Protective cover; 11. Brake disc; 12. Brake caliper. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0039] Example 1:

[0040] This application provides a protective structure for a band saw, including: a bed, on which a worktable 1 for placing workpieces is provided; a lifting seat, which is disposed on the bed and has a driving pulley 2 and a driven pulley 3; a band saw blade 4, which is wound around the driving pulley 2 and the driven pulley 3 for cutting workpieces; and a guide frame 5, which is disposed on the lifting seat and has guide columns 6 arranged on it.

[0041] It also includes: a protective section 7, which has two sections located on the left and right sides of the workbench 1 respectively, and the protective section 7 has a slit 70 through which the band saw blade 4 passes;

[0042] Among them, the protective part 7 can form a protective barrier 71 on both sides of the band saw blade 4.

[0043] The protective section 7 also includes a protective cavity 72, which is located on the side of the protective section 7 away from the cutting area of ​​the workbench 1;

[0044] In this process, the band saw blade 4 passes through the protective cavity 72 and the slit 70 during the cutting of the workpiece, and the protective barrier 71 is formed by the side walls on both sides of the protective cavity 72.

[0045] Furthermore, the bed, worktable 1, lifting seat, guide frame 5, and guide column 6 are all of conventional structure. The lifting seat also has a wheel cover covering the outside of the driving pulley 2 and the driven pulley 3. The driving pulley 2 is driven by a conventional motor. There are two guide columns 6, which are symmetrically distributed on both sides of the guide frame 5. The bottom of the guide column 6 has a guide block. The guide block also has a slit 70 for the saw blade to pass through in order to guide the saw blade and limit its lateral movement. The protective part 7 is located in the cutting area on the worktable 1. The band saw blade 4 can extend from the left protective part 7 to the right protective part 7. The protective part 7 has a certain height to completely limit the scattering when the band saw blade 4 breaks. The end of the protective part 7 facing the cutting area of ​​the worktable 1 also has a conventional clamping block for clamping the workpiece.

[0046] Furthermore, the protective cavity 72 is connected to the slit 70 and expands from the slit 70 toward the side away from the cutting area of ​​the workbench 1. The end of the protective cavity 72 away from the cutting area of ​​the workbench 1 and the top are both open.

[0047] In this embodiment, during the operation of the band saw, the band saw blade 4 passes through the slit 70 on the protective part 7 to operate normally and cut the workpiece. When the band saw blade 4 breaks during high-speed operation, the broken part of the band saw blade 4 is restricted by the slits 70 on the two protective parts 7 respectively, and enters the protective part 7 between the protective barriers 71 on both sides of the band saw blade 4, and is thus contained in the protective cavity 72, thereby preventing the broken band saw blade 4 from flying away and causing injury to the user, effectively improving the safety of using the band saw.

[0048] Example 2:

[0049] This embodiment provides a protective structure for a band saw. In addition to the technical solutions of the above embodiments, it also has the following technical features, including: a vertical pressure block 8, which is moved up and down by a vertical drive unit 9 set on the guide frame 5.

[0050] The vertical pressure block 8 can press against the upper surface of the workpiece to provide vertical pressure.

[0051] It also includes: a protective cover 10, which is made of a transparent material and is disposed on the front surface of the vertical pressure block 8 and can cover the area above and the front area of ​​the band saw blade 4.

[0052] Furthermore, the vertical drive unit 9 includes a mounting block fixed to the front surface of the guide frame 5. The mounting block has a vertically extending sliding hole that passes through the mounting block. A guide rod passes through the sliding hole. The bottom end of the guide rod is connected to the vertical pressure block 8. A drive cylinder is fixed to the front surface of the mounting block. The drive end of the drive cylinder extends vertically upward and is connected to the top end of the guide rod through a connecting plate.

[0053] Furthermore, the protective cover 10 is connected to the vertical pressure block 8 by conventional bolts. The protective cover 10 consists of a plate connected to the vertical pressure block 8, a horizontal plate, and a vertical plate. The vertical plate extends downwards no more than the bottom end of the vertical pressure block 8.

[0054] In this embodiment, during the operation of the band saw, the vertical drive unit 9 drives the vertical pressure block 8 to move and press against the upper surface of the workpiece, thereby applying pressure to the workpiece in the vertical direction and further fixing the workpiece to prevent the band saw blade 4 from being misaligned and broken due to workpiece movement. At the same time, the protective cover 10 can further protect the cutting area of ​​the band saw blade 4, thereby further preventing the broken band saw blade 4 from flying away and causing injury to the user, effectively improving the safety of using the band saw.

[0055] Example 3:

[0056] This embodiment provides a protective structure for a band saw. In addition to the technical solutions of the above embodiments, it also has the following technical features, including: a brake disc 11, which is arranged on the shaft of the drive pulley 2 and rotates synchronously with the drive pulley 2; and a brake caliper 12, which is arranged on one side of the brake disc 11 and indirectly stops the band saw blade 4 from running by clamping and braking the brake disc 11.

[0057] Furthermore, the drive pulley 2 is rotatably mounted in the wheel cover via a shaft, the motor is arranged on the outside of the wheel cover and the drive shaft of the motor is located in the wheel cover, the drive shaft of the motor is equipped with a transmission structure such as a transmission gear or a transmission sprocket, the shaft of the drive pulley 2 is connected to the drive shaft of the motor via gear transmission or sprocket transmission, the brake disc 11 is a conventional brake disc structure, the brake caliper 12 is a conventional pneumatic or hydraulic caliper, preferably a pneumatic caliper, the brake caliper 12 is mounted in the wheel cover, and the brake caliper 12 also includes a corresponding compressor and other structures.

[0058] In this embodiment, when it is necessary to brake the band saw blade 4 to an emergency stop, the brake caliper 12 clamps into the brake disc 11, thereby stopping the rotation of the brake disc 11, which in turn stops the drive pulley 2 connected to the brake disc 11 via a shaft, and finally indirectly stops the band saw blade 4. Compared with the method of directly contacting the band saw blade 4 for braking, this utility model can effectively avoid the impact of cutting fluid and impurities attached to the band saw blade 4 on the braking effect, ensure the stability of the band saw blade 4 during emergency braking, and further improve the safety of the band saw machine.

[0059] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A protective structure for a band saw, comprising: The bed is provided with a worktable (1) for placing workpieces; The lifting seat is mounted on the bed and has a driving pulley (2) and a driven pulley (3). Band saw blade (4), which is wound around the drive pulley (2) and the driven pulley (3) for cutting workpieces; Guide frame (5), the guide frame (5) is mounted on the lifting seat, and guide columns (6) are arranged on the guide frame (5); Its characteristic is that it further includes: The protective part (7) has two parts and is located on the left and right sides of the workbench (1), and the protective part (7) has a slit (70) through which the band saw blade (4) passes; The protective part (7) can form a protective barrier (71) on both sides of the band saw blade (4).

2. A guard structure for a band saw machine according to claim 1, characterized in that The protective part (7) also includes: A protective cavity (72) is located on the side of the protective part (7) away from the cutting area of ​​the workbench (1); The band saw blade (4) passes through the protective cavity (72) and the slit (70) during the cutting process, and the protective barrier (71) is formed by the side walls on both sides of the protective cavity (72).

3. A guard structure for a band saw machine according to claim 2, characterized in that Also includes: Vertical pressure block (8), which moves up and down by a vertical drive unit (9) provided on the guide frame (5); The vertical pressure block (8) can press against the upper surface of the workpiece to provide vertical pressure.

4. A guard structure for a band saw machine according to claim 3, characterized in that Also includes: A protective cover (10) is made of transparent material and is disposed on the front surface of the vertical pressure block (8) and can cover the upper area and the front area of ​​the band saw blade (4).

5. The guard structure of a band saw machine according to claim 1, characterized in that, Also includes: Brake disc (11), the brake disc (11) is arranged on the shaft of the drive pulley (2) and rotates synchronously with the drive pulley (2); Brake caliper (12) is located on one side of brake disc (11) and indirectly stops the band saw blade (4) from running by clamping brake disc (11).

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