CN214489067U

CN214489067U - Saw blade height adjusting device for band sawing machine

Info

Publication number: CN214489067U
Application number: CN202022490645.1U
Authority: CN
Inventors: 金奇辉; 谢梓华
Original assignee: Xiamen Jinquan Industrial Co ltd
Current assignee: Xiamen Jinquan Industrial Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-10-26
Anticipated expiration: 2030-11-02

Abstract

The utility model relates to the technical field of band sawing machines, in particular to a saw blade height adjusting device for a band sawing machine, which comprises a frame, a driving saw wheel, a driven saw wheel and a first motor, wherein the frame is provided with a lifting device which is connected with a sliding device, the driving saw wheel and the driven saw wheel are respectively connected with corresponding sliding devices, the sliding devices respectively comprise guide rails, the guide rails are slidably connected with sliding blocks, the sliding blocks are connected with mounting plates, the driven saw wheel and the driving saw wheel are respectively connected on the corresponding mounting plates, and the first motor is connected with the driving saw wheel; the outer walls of the driving saw wheel and the driven saw wheel are wound with saw belts, and the mounting plates are provided with tensioning assemblies. One mounting plate is lifted up and the other mounting plate is lowered down through the rotation of the second motor, so that two end parts of the cutting section are not on the same horizontal plane, and the cutting section is inclined at an angle. In the cutting process, the second motor continuously rotates forwards and backwards, and the inclined angle of the cutting section is continuously changed, so that the cutting efficiency is improved.

Description

Saw blade height adjusting device for band sawing machine

Technical Field

The utility model relates to a band sawing machine technical field specifically is a saw bit height adjusting device for band sawing machine.

Background

The band sawing machine is a machine tool used for sawing various metal materials, and is a machine tool for cutting materials to be cut by using cutters such as a saw band, a saw blade and the like, wherein the saw band as the cutter is a cutting device which is widely applied, and is mainly applied to materials with longer cutting length, so that the materials can be cut by using the saw band with enough length to a specified depth, the whole cutting work time is short, the efficiency is high, the saw band as the cutter is divided into a horizontal band sawing machine with the saw band horizontal and the cutting direction vertical downward and a vertical band sawing machine with the saw band vertical and the cutting direction horizontal, wherein the horizontal band sawing machine mainly cuts long-strip materials, and the vertical band sawing machine mainly cuts large-sized block-shaped disassembled materials.

Wherein, horizontal band sawing machine includes the base, workstation and cutting device, the workstation is installed and is used for supplying the material that needs the cutting to place on the base and cut, and cutting device includes the support body, a plurality of saw wheels and saw band, each saw wheel rotates and sets up on the support body, the saw band is installed on each saw wheel, and the saw band is provided with one section and is vertical cutting section, make the saw wheel rotate the in-process alright drive saw band and carry out high-speed rotation, thereby realize the cutting work of cutting section, in addition, the support body slides along the horizontal direction and sets up in the base, make and to drive the cutting section and slide and carry out the cutting of degree of depth.

However, in the existing horizontal band sawing machine, two saw wheels cannot move up and down, so that the heights of two ends of a cutting section on a saw band cannot be adjusted, the cutting section and a workpiece always keep the same angle when the workpiece is cut, and the cutting efficiency is reduced.

Based on this, the utility model designs a band saw is saw bit height adjusting device for bed to solve above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a band sawing machine is with saw bit height adjusting device for solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: a saw blade height adjusting device for a band sawing machine comprises a rack, a driving saw wheel, a driven saw wheel and a first motor, wherein the rack is provided with a lifting device, two ends of the lifting device are respectively connected with sliding devices, the driving saw wheel and the driven saw wheel are respectively connected with corresponding sliding devices, each sliding device comprises a guide rail, the guide rails are fixedly connected with the rack, the guide rails are slidably connected with sliding blocks, the sliding blocks are connected with mounting plates, the driven saw wheel and the driving saw wheel are respectively rotatably connected onto the corresponding mounting plates, the first motor is fixedly connected with the mounting plates, and the output end of the first motor penetrates through the mounting plates and is connected with the driving saw wheel;

the outer walls of the driving saw wheel and the driven saw wheel are wound with saw belts, each mounting plate is provided with a tensioning assembly, and the saw belts between the two tensioning assemblies are cutting sections.

Preferably, the lifting device comprises a transmission device, the transmission device comprises a transmission rod rotatably connected to the rack, first bevel gears are respectively arranged at two ends of the transmission rod, a second bevel gear is meshed and connected to the outer wall of each first bevel gear and is rotatably connected with the rack, the rack is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with one second bevel gear;

each the second bevel gear all is connected with the lead screw, the lead screw rotates to be connected in the frame, lead screw outer wall connection has the nut, the mounting panel is connected with the lifter plate, the through-hole has been seted up in the frame, the lifter plate cover is established at the through-hole inner chamber, just lifter plate and nut fixed connection.

Preferably, the tensioning assembly is including the connecting rod, connecting rod and mounting panel fixed connection, the connecting rod bottom is provided with the recess, recess cavity is provided with the wheel components that are used for the centre gripping saw area, the recess cavity roof is provided with the spout, spout sliding connection has the push rod, the push rod lower extreme is connected with the rubber block, the spout inner chamber is provided with the second spring, second spring upper end is connected with the spout roof, second spring lower extreme is connected with the push rod upper end, V type groove has been seted up to the rubber block, the saw is taken the top and is fixed at V type inslot.

Preferably, the roller assembly is including setting up the gyro wheel in the saw band both sides respectively, one of them the gyro wheel passes through the mount at fixed recess lateral wall, another the gyro wheel is connected with the adjustable shelf, the adjustable shelf is connected with the slide bar, slide bar and connecting rod sliding connection, the slide bar outer wall is provided with first spring, first spring one end is connected with the adjustable shelf, the first spring other end is connected with the recess lateral wall.

Preferably, one side of the frame, which is close to the driving saw wheel, is provided with a limiting device, the limiting device comprises an upper limiting block and a lower limiting block, the upper limiting block is close to the upper end of the through hole and is fixed on the frame, and the lower limiting block is close to the lower end of the through hole and is fixed on the frame.

Compared with the prior art, the beneficial effects of the utility model are that: the second motor rotates to drive the second bevel gears to rotate and further drive the screw rods to rotate, and the two second bevel gears are opposite in steering through transmission of the first bevel gears, so that the two screw rods are opposite in steering, the mounting plate in one sliding device is made to ascend, the mounting plate in the other sliding device is made to descend, two end parts of the cutting section are not on the same horizontal plane, and the cutting section is made to incline by an angle. In the cutting process, the second motor continuously rotates forwards and backwards, and the inclined angle of the cutting section is continuously changed, so that the cutting efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

fig. 4 is the schematic structural diagram of the tensioning assembly of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a frame; 2. a driving saw wheel; 3. a driven saw wheel; 4. a first motor; 5. a lifting device; 6. a sliding device; 7. a guide rail; 8. a slider; 9. mounting a plate; 10. a saw band; 11. a tension assembly; 12. a transmission device; 13. a transmission rod; 14. a first bevel gear; 15. a second bevel gear; 16. a second motor; 17. A screw rod; 18. a nut; 19. a lifting plate; 20. a through hole; 21. a connecting rod; 22. a groove; 23. a roller assembly; 24. a roller; 25. a fixed mount; 26. a movable frame; 27. a slide bar; 28. a first spring; 29. A rubber block; 30. a V-shaped groove; 31. a limiting device; 32. an upper limit block; 33. a lower limiting block; 34. A chute; 35. a push rod; 36. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example (b):

referring to fig. 1-4, the present invention provides a technical solution: a saw blade height adjusting device for a band sawing machine comprises a rack 1, a driving saw wheel 2, a driven saw wheel 3 and a first motor 4, wherein the rack 1 is provided with a lifting device 5, two ends of the lifting device 5 are respectively connected with sliding devices 6, the driving saw wheel 2 and the driven saw wheel 3 are respectively connected with the corresponding sliding devices 6, each sliding device 6 comprises a guide rail 7, the guide rails 7 are fixedly connected with the rack 1, the guide rails 7 are slidably connected with sliding blocks 8, the sliding blocks 8 are connected with mounting plates 9, the driven saw wheel 3 and the driving saw wheel 2 are respectively rotatably connected onto the corresponding mounting plates 9, the first motor 4 is fixedly connected with the mounting plates 9, and the output end of the first motor 4 penetrates through the mounting plates 9 and is connected with the driving saw wheel 2;

the outer walls of the driving saw wheel 2 and the driven saw wheel 3 are wound with saw belts 10, and each mounting plate 9 is provided with a tensioning assembly 11.

Specifically, the lifting device 5 comprises a transmission device 12, the transmission device 12 comprises a transmission rod 13 rotatably connected to the rack 1, first bevel gears 14 are respectively arranged at two ends of the transmission rod 13, a second bevel gear 15 is engaged and connected to the outer wall of each first bevel gear 14, the second bevel gear 15 is rotatably connected to the rack 1, the rack 1 is fixedly connected with a second motor 16, and the output end of the second motor 16 is fixedly connected to one second bevel gear 15;

each second bevel gear 15 is connected with a screw rod 17, the screw rod 17 is rotatably connected to the rack 1, a nut 18 is connected to the outer wall of the screw rod 17, the mounting plate 9 is connected with a lifting plate 19, the rack 1 is provided with a through hole 20, the inner cavity of the through hole 20 is sleeved with the lifting plate 19, and the lifting plate 19 is fixedly connected with the nut 18. The rotation directions of the two second bevel gears 15 and further the two lead screws 17 are opposite through the transmission of the first bevel gear 14, so that one lifting plate 19 ascends and the other lifting plate 19 descends. Through the arrangement, the device can respectively drive the two sliding devices 6 to ascend and descend through the second motor 16, and consistency of ascending and descending actions of the two sliding devices 6 is realized.

Specifically, tensioning assembly 11 is including connecting rod 21, connecting rod 21 and mounting panel 9 fixed connection, connecting rod 21 bottom is provided with recess 22, the recess 22 inner chamber is provided with roller assembly 23 that is used for centre gripping saw area 10, recess 22 inner chamber roof is provided with spout 34, spout 34 sliding connection has push rod 35, push rod 35 lower extreme is connected with rubber block 29, spout 34 inner chamber is provided with second spring 36, second spring 36 upper end is connected with spout 34 roof, second spring 36 lower extreme is connected with push rod 35 upper end, V type groove 30 has been seted up to rubber block 29, saw area 10 top is fixed in V type groove 30. When one of the sliding devices 6 is lifted and the other sliding device 6 is lowered, the center distance between the driving saw wheel 2 and the driven saw wheel 3 is changed, so that the tension degree of the saw belt 10 is changed, the tension degree of the saw belt 10 is adjusted through the tension assembly 11, and the problem that the saw belt 10 is distorted and deformed or the saw belt 10 is broken due to the fact that the saw belt 10 is loosened is avoided.

Specifically, the roller assembly 23 includes rollers 24 respectively disposed on two sides of the saw band 10, one of the rollers 24 is disposed on a side wall of the fixed groove 22 through a fixed frame 25, the other roller 24 is connected with a movable frame 26, the movable frame is connected with a slide bar 27, the slide bar 27 is slidably connected with the connecting rod 21, a first spring 28 is disposed on an outer wall of the slide bar 27, one end of the first spring 28 is connected with the movable frame 26, the other end of the first spring 28 is connected with the side wall of the groove 22 to clamp the saw band 10 tightly through the two rollers 24, and the problem that the saw band 10 is easy to break due to play in the groove 22 in the cutting process is avoided.

Specifically, one side of the frame 1 close to the driving saw wheel 2 is provided with a limiting device 31, the limiting device 31 comprises an upper limiting block 32 and a lower limiting block 33, the upper limiting block 32 is close to the upper end of the through hole 20 and fixed on the frame 1, and the lower limiting block 33 is close to the lower end of the through hole 20 and fixed on the frame 1. By providing the upper limit block 32 and the lower limit block 33, the upper limit block 32 comes into sliding contact with the upper end of the guide rail 7 when the slider 8 moves to the lower end of the guide rail 7, and the lower limit block 33 comes into sliding contact with the lower end of the guide rail 7. Through the above arrangement, the first motor 4 is prevented from colliding with the top wall or the bottom wall of the through hole 20, causing a problem that the first motor 4 is damaged.

One specific application of this embodiment is: when the saw belt 10 is installed, the saw belt 10 is wound on the outer walls of the driving saw wheel 2 and the driven saw wheel 3, the saw belt 10 is clamped into the tensioning assembly 11, when the saw belt 10 is clamped into the tensioning assembly 11, the sliding rod 27 is pulled outwards to separate the two rollers 24, after the saw belt 10 is clamped into the V-shaped groove 30, the sliding rod 27 is loosened, the movable frame 26 is pushed by the first spring 28 to move towards one side close to the saw belt 10, the rollers 24 abut against the side wall of the saw belt 10, and the saw belt 10 is pressed by the first spring 28, so that the saw belt 10 is prevented from moving in the cutting process, and the problem that the saw belt 10 is easy to break is caused.

After the saw band 10 is installed, the first motor 4 is started, the driving saw wheel 2 is driven to rotate through the first motor 4, the saw band 10 is further pulled to rotate, and the workpiece is cut through the saw band 10.

During the cutting process of the saw band 10, the second motor 16 is started to drive the transmission device 12 to work, the screw rods 17 are driven to rotate through the transmission device 12, and the two second bevel gears 15 are driven to rotate through the first bevel gears 14 at the two ends of the transmission rod 13 respectively, so that the rotation directions of the two second bevel gears 15 are opposite, the rotation directions of the two screw rods 17 are opposite, one sliding device 6 is lifted, and the other sliding device 6 is lowered.

When the mounting plate 9 in the sliding device 6 connected with the driving saw wheel 2 rises, the mounting plate 9 in the sliding device 6 connected with the driven saw wheel 3 descends, so that the driving saw wheel 2 and the driven saw wheel 3 are staggered in the vertical direction, an included angle is formed between a connecting line of the centers of the driving saw wheel 2 and the driven saw wheel 3 and the horizontal plane, further, the cutting section is inclined, in the working process of the saw belt 10, the second motor 16 continuously rotates forwards and backwards, the included angle between the connecting line of the centers of the driving saw wheel 2 and the driven saw wheel 3 and the horizontal plane is continuously changed, the inclined angle of the cutting section is continuously changed, and the efficiency of the saw belt 10 for cutting workpieces is improved through the change of the inclined angle of the cutting section.

When the connecting line of the centers of the driving saw wheel 2 and the driven saw wheel 3 forms an included angle with the horizontal plane, the tension degree of the saw belt 10 changes, when the saw belt 10 is loosened, the second spring 36 pushes the rubber block 29 to move downwards, the saw belt 10 is tensioned through the rubber block 29, and the problem that the saw belt 10 is distorted and deformed in the cutting process due to the fact that the saw belt 10 is loosened is solved. When the tension of the saw band 10 is too much, the saw band 10 pushes the rubber block 29 to move upwards, thereby compressing the second spring 36, and preventing the problem that the saw band 10 is easily broken because the tension of the saw band 10 is too much.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments 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 invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a band saw is saw height adjusting device for bed, includes frame (1), initiative saw wheel (2), driven saw wheel (3) and first motor (4), its characterized in that: the automatic sawing machine is characterized in that the rack (1) is provided with a lifting device (5), two ends of the lifting device (5) are respectively connected with a sliding device (6), the driving saw wheel (2) and the driven saw wheel (3) are respectively connected with the corresponding sliding devices (6), each sliding device (6) comprises a guide rail (7), the guide rails (7) are fixedly connected with the rack (1), the guide rails (7) are slidably connected with sliding blocks (8), the sliding blocks (8) are connected with mounting plates (9), the driven saw wheels (3) and the driving saw wheel (2) are respectively rotatably connected onto the corresponding mounting plates (9), the first motor (4) is fixedly connected with the mounting plates (9), and the output end of the first motor (4) penetrates through the mounting plates (9) to be connected with the driving saw wheel (2);

the outer walls of the driving saw wheel (2) and the driven saw wheel (3) are wound with saw belts (10), and each mounting plate (9) is provided with a tensioning assembly (11).

2. The saw blade height adjusting device for band sawing machine as claimed in claim 1, wherein: the lifting device (5) comprises a transmission device (12), the transmission device (12) comprises a transmission rod (13) rotatably connected to the rack (1), first bevel gears (14) are respectively arranged at two ends of the transmission rod (13), a second bevel gear (15) is meshed and connected to the outer wall of each first bevel gear (14), the second bevel gears (15) are rotatably connected with the rack (1), the rack (1) is fixedly connected with a second motor (16), and the output end of the second motor (16) is fixedly connected with one second bevel gear (15);

each second bevel gear (15) all is connected with lead screw (17), lead screw (17) are rotated and are connected in frame (1), lead screw (17) outer wall is connected with nut (18), mounting panel (9) are connected with lifter plate (19), through-hole (20) have been seted up in frame (1), lifter plate (19) cover is established at through-hole (20) inner chamber, just lifter plate (19) and nut (18) fixed connection.

3. The saw blade height adjusting device for band sawing machine as claimed in claim 1, wherein: tensioning assembly (11) is including connecting rod (21), connecting rod (21) and mounting panel (9) fixed connection, connecting rod (21) bottom is provided with recess (22), recess (22) inner chamber is provided with roller components (23) that are used for centre gripping saw area (10), recess (22) inner chamber roof is provided with spout (34), spout (34) sliding connection has push rod (35), push rod (35) lower extreme is connected with rubber block (29), spout (34) inner chamber is provided with second spring (36), second spring (36) upper end is connected with spout (34) roof, second spring (36) lower extreme is connected with push rod (35) upper end, V type groove (30) have been seted up in rubber block (29), saw area (10) top is fixed in V type groove (30).

4. The saw blade height adjusting device for band sawing machine as claimed in claim 3, wherein: roller assembly (23) is including setting up gyro wheel (24) in saw band (10) both sides respectively, one of them gyro wheel (24) are through mount (25) at fixed recess (22) lateral wall, another gyro wheel (24) are connected with adjustable shelf (26), adjustable shelf (26) are connected with slide bar (27), slide bar (27) and connecting rod (21) sliding connection, slide bar (27) outer wall is provided with first spring (28), first spring (28) one end is connected with adjustable shelf (26), first spring (28) other end and recess (22) lateral wall are connected.

5. The saw blade height adjusting device for band sawing machine as claimed in claim 1, wherein: one side of the frame (1) close to the driving saw wheel (2) is provided with a limiting device (31), the limiting device (31) comprises an upper limiting block (32) and a lower limiting block (33), the upper limiting block (32) is close to the upper end of the through hole (20) and is fixed on the frame (1), and the lower limiting block (33) is close to the lower end of the through hole (20) and is fixed on the frame (1).