CN110340994B

CN110340994B - Band sawing machine

Info

Publication number: CN110340994B
Application number: CN201910649715.2A
Authority: CN
Inventors: 叶杏; 黄磊; 黄美英
Original assignee: Foshan Tengyuanfei Machinery Co ltd
Current assignee: Foshan tengyuanfei Machinery Co.,Ltd.
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2021-08-31
Anticipated expiration: 2039-07-18
Also published as: CN110340994A

Abstract

The invention relates to a band sawing machine which comprises a rack, wherein an adjusting mechanism is arranged on the top surface of the rack, a lower rotating wheel is arranged below the rack, a tensioning mechanism is arranged at the top end of the adjusting mechanism, a saw blade is arranged between the tensioning mechanism and the lower rotating wheel, a protective cover is arranged on the rack and used for protecting the adjusting mechanism and the tensioning mechanism; the tensioning mechanism comprises a U-shaped frame, the U-shaped frame is arranged on the top end of the adjusting mechanism, a cross shaft is arranged between the top ends of the two sides of the U-shaped frame through a bearing, a motor is arranged on the outer side of the U-shaped frame through an installation shell, an output shaft of the motor is connected with the right end of the cross shaft through a coupler, a supporting roller is sleeved on the periphery of the cross shaft, a sliding groove is formed in the center of the supporting roller, a fixed block is arranged on the outer surface of the cross shaft, and the fixed block is located in the sliding groove. The band sawing machine provided by the invention has a good tensioning effect, avoids the phenomenon of saw clamping, improves the working efficiency, has a buffering function, avoids the phenomenon of saw blade fracture, and reduces the processing and production cost.

Description

Band sawing machine

Technical Field

The invention relates to the technical field of sawing machines, in particular to a band sawing machine.

Background

In the process of processing wood, a sawing machine is often used for sawing the wood to obtain wood boards with different sizes and thicknesses, and then the wood boards are processed into wooden products such as furniture and the like through post-processing. In the specific processing process of the sawing machine, wood raw materials are placed on a workbench, then wood is fed, and meanwhile, the saw blade rotates, so that wood plates with different sizes and thicknesses are sawn.

The prior sawing machine has the following disadvantages: 1. the tensioning effect is poor, the phenomenon of saw clamping is easy to occur in the process of sawing off the wood raw materials, and the working efficiency is reduced; 2. the buffer function is not provided, the saw blade is easy to break after being impacted by stress, and the processing and production cost is improved. Therefore, the band sawing machine is designed and has a good tensioning function and a good buffering function.

Disclosure of Invention

In order to solve the problems, the invention provides a band sawing machine which can solve the problems.

Technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme: a band sawing machine comprises a frame, wherein an adjusting mechanism is arranged on the top surface of the frame, a lower rotating wheel is arranged below the frame, a tensioning mechanism is arranged at the top end of the adjusting mechanism, a saw blade is arranged between the tensioning mechanism and the lower rotating wheel, a protective cover is arranged on the frame and used for protecting the adjusting mechanism and the tensioning mechanism; the other parts of whole sawing machine are fixed in the frame support, and adjustment mechanism can adjust straining device's height, preliminary tensioning saw bit, then the tensioning degree of rethread straining device fine setting saw bit avoids taking place the phenomenon of card saw, improves work efficiency.

The tensioning mechanism comprises a U-shaped frame, the U-shaped frame is arranged at the top end of the adjusting mechanism, a cross shaft is arranged between the top ends of the two sides of the U-shaped frame through a bearing, a motor is arranged on the outer side of the U-shaped frame through an installation shell, an output shaft of the motor is connected with the right end of the cross shaft through a coupler, a supporting roller is sleeved on the periphery of the cross shaft, a sliding groove is formed in the center of the supporting roller, a fixed block is arranged on the outer surface of the cross shaft and located in the sliding groove, and when the cross shaft rotates, the supporting roller is driven to rotate through the fixed block; the motor provides power for the rotation of saw bit, and specifically, the output shaft rotation of motor drives the cross axle and rotates, and the cross axle drives the fixed block rotatory, and then drives the backing roll rotation through the cooperation of fixed block and spout.

A left air cylinder is arranged between the left end of the supporting roller and the left end of the U-shaped frame, a right air cylinder is arranged between the right end of the supporting roller and the right end of the U-shaped frame, a fixing ring is arranged on the periphery of the supporting roller, sliding rods are evenly inserted in the circumferential direction of the fixing ring, an arc-shaped plate is arranged at the outer end of each sliding rod, the arc-shaped plate is matched with a saw blade, supporting balls are arranged at the bottom ends of the sliding rods, and the supporting balls are tightly attached to the outer surface of the supporting roller;

and a buffer mechanism is arranged between the inner wall of the fixed ring and the slide bar, and a side blocking mechanism is arranged on the cross shaft.

Preferably, adjustment mechanism is including founding a section of thick bamboo, found the vertical setting of a section of thick bamboo on the frame top surface, found a section of thick bamboo interpolation and be equipped with the pole setting, the pole setting right side is equipped with the rack, found a section of thick bamboo internal rotation and be equipped with the gear, and gear and rack intermeshing, the gear side is equipped with the adjustment disk, and the adjustment disk extends to found a section of thick bamboo outside, be equipped with the support cylinder between bottom surface and the pole setting bottom surface in the founding a section of thick bamboo, the top is equipped with the stopper in the founding a section of thick bamboo, the stopper is used for spacing pole setting.

Preferably, buffer gear includes the dog, go up the dog and evenly set up on the inner wall of retainer plate, and go up dog and arc and correspond the distribution, the slide bar runs through retainer plate and last dog in proper order, be equipped with down the baffle on the slide bar bottom, go up and be equipped with buffer spring between dog and the lower baffle, and buffer spring is located the periphery of slide bar.

Preferably, the side keeps off the mechanism and includes the separation blade, the separation blade sets up between slide bar bottom and support ball, the cross axle periphery is equipped with the broken line type curb plate, the top is equipped with spacing fixture block in the broken line type curb plate, spacing fixture block is used for spacing separation blade, and then spacing support ball along the removal of cross axle circumference.

Preferably, the supporting roller adopts a revolving body structure, the diameter of the left end of the revolving body structure is larger than that of the right end of the revolving body structure, inclined surface transition is adopted between the left end and the right end of the revolving body structure, supporting grooves are formed in the left end and the right end of the revolving body structure, and supporting balls are arranged in the supporting grooves.

Preferably, the length of the sliding groove is greater than the distance between the supporting grooves at the left end and the right end of the revolving body structure, the supporting grooves are of arc structures, and the centers of the supporting grooves and the supporting balls are the same.

Preferably, the inner of left side cylinder, right cylinder all is equipped with the mounting panel, the mounting panel is loop configuration, and loop configuration is located the periphery of cross axle, the mounting panel inboard evenly is equipped with the side and keeps off the ball, and the tip that just the side kept off ball and backing roll hugs closely.

Advantageous effects

1. The band sawing machine provided by the invention has a good tensioning effect, avoids the phenomenon of saw clamping, improves the working efficiency, has a buffering function, avoids the phenomenon of saw blade fracture, and reduces the processing and production cost;

2. according to the band sawing machine provided by the invention, the adjusting disc is rotated by hand, the adjusting disc drives the rack to move upwards through the gear, the height of the tensioning device is adjusted, the tension degree of the saw blade is preliminarily adjusted, then the left air cylinder and the right air cylinder are started, the supporting roller moves rightwards along the transverse shaft, the supporting ball rolls down into the supporting groove at the left end of the supporting roller, and the saw blade is further tensioned;

3. according to the band sawing machine provided by the invention, after the saw blade is impacted by stress, the arc-shaped plate shakes, the arc-shaped plate drives the sliding rod to move, and meanwhile, the upper stop block and the lower stop block move relatively, so that the buffer spring is extended or shortened, a good buffer effect is achieved, the saw blade is effectively protected, and the processing cost is reduced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

FIG. 2 is a side cross-sectional view of the tensioning mechanism of the present invention;

fig. 3 is a front sectional view of the tension mechanism of the present invention.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.

The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.

As shown in fig. 1-3, a band sawing machine comprises a frame 1, an adjusting mechanism 5 is arranged on the top surface of the frame 1, the adjusting mechanism 5 comprises a vertical cylinder 54, the vertical cylinder 54 is vertically arranged on the top surface of the frame 1, a vertical rod 51 is inserted into the vertical cylinder 54, a rack 52 is arranged on the right side of the vertical rod 51, a gear 53 is rotatably arranged in the vertical cylinder 54, the gear 53 is meshed with the rack 52, the side face of the gear 53 is provided with an adjusting disc, the adjusting disc extends to the outer side of the vertical cylinder 54, a supporting cylinder 55 is arranged between the inner bottom face of the vertical cylinder 54 and the bottom face of the vertical rod 51, the top of the inner portion of the vertical cylinder 54 is provided with a limiting block 56, the limiting block 56 is used for limiting the vertical rod 51, the lower portion of the rack 1 is provided with the lower rotating wheel 2, the top end of the adjusting mechanism 5 is provided with the tensioning mechanism 3, the saw blade 4 is arranged between the tensioning mechanism 3 and the lower rotating wheel 2, the rack 1 is provided with the protective cover 11, and the protective cover 11 is used for protecting the adjusting mechanism 5 and the tensioning mechanism 3; frame 1 can support other parts of fixing whole sawing machine, hold the adjustment disk and apply the revolving force with the hand, the rotation of adjustment disk drives gear 53 rotatory, under gear 53 and rack 52 intermeshing's effect, can drive rack 52 rebound, and then adjust straining device 3's height, tentatively adjust the rate of tension of saw bit 4, start simultaneously and support cylinder 55 and play straining device 3 with firm support, in addition, can also further adjust the rate of tension of saw bit 4 through straining device 3, the tensioning is effectual, avoid the phenomenon of card saw, and the work efficiency is improved.

The tensioning mechanism 3 comprises a U-shaped frame 31, the U-shaped frame 31 is arranged on the top end of the adjusting mechanism 5, a cross shaft 331 is arranged between the top ends of the two sides of the U-shaped frame 31 through a bearing, a motor 332 is arranged on the outer side of the U-shaped frame 31 through an installation shell, an output shaft of the motor 332 is connected with the right end of the cross shaft 331 through a coupling, a supporting roller 32 is sleeved on the periphery of the cross shaft 331, a sliding groove 35 is formed in the center of the supporting roller 32, a fixing block 36 is arranged on the outer surface of the cross shaft 331, the fixing block 36 is located in the sliding groove 35, and when the cross shaft 331 rotates, the supporting roller 32 is driven to rotate through the fixing block 36; the motor 332 is started, the output shaft of the motor 332 rotates to drive the cross shaft 331 to rotate, the cross shaft 331 rotates to drive the supporting roller 32 to rotate through the fixing block 36 and the sliding groove 35, power is provided for the rotation of the saw blade 4, and then the wood raw materials are sawn.

A left air cylinder 371 is arranged between the left end of the supporting roller 32 and the left end of the U-shaped frame 31, a right air cylinder 372 is arranged between the right end of the supporting roller 32 and the right end of the U-shaped frame 31, mounting plates are arranged at the inner ends of the left air cylinder 371 and the right air cylinder 372, the mounting plates are of annular structures, the annular structures are located on the periphery of the transverse shaft 331, side blocking balls are uniformly arranged on the inner sides of the mounting plates, and the side blocking balls are tightly attached to the end portions of the supporting roller 32; starting left cylinder 371 and right cylinder 372 simultaneously, the cooperation of left cylinder 371 and right cylinder 372 can drive backing roll 32 along cross axle 331 lateral shifting to further tensioning saw bit 4, in addition, through the mounting panel installation side fender ball, the side keeps off the tip of ball and backing roll 32 and hugs closely simultaneously, can follow the lateral shifting of both ends spacing stop backing roll 32.

The supporting rollers 32 are of a revolving body structure, the diameter of the left end of the revolving body structure is larger than that of the right end of the revolving body structure, the left end and the right end of the revolving body structure are in inclined surface transition, supporting grooves 395 are formed in the left end and the right end of the revolving body structure, supporting balls 393 are arranged in the supporting grooves 395, the length of each sliding groove 35 is larger than the distance between the supporting grooves 395 on the left end and the right end of the revolving body structure, the supporting grooves 395 are of arc structures, and the centers of the supporting grooves 395 and the supporting balls 393 are the same; the supporting roller 32 moves rightwards, so that the supporting balls 393 can roll into the supporting grooves 395 at the right end, the diameter of the left end of the revolving body structure is larger than that of the right end, the sliding rod 391 can be forced to slide outwards, the saw blade 4 is further tensioned, and the inclined surface transition design is adopted between the left end and the right end of the revolving body structure, so that the stable rolling of the supporting balls 393 is facilitated.

A fixed ring 38 is arranged on the periphery of the supporting roller 32, sliding rods 391 are evenly inserted in the fixed ring 38 in the circumferential direction, an arc-shaped plate 392 is arranged at the outer end of the sliding rod 391, the arc-shaped plate 392 is matched with the saw blade 4, a supporting ball 393 is arranged at the bottom end of the sliding rod 391, and the supporting ball 393 is tightly attached to the outer surface of the supporting roller 32; the sliding rod 391 slides outwardly causing the arcuate plate 392 to move outwardly, the arcuate plate 392 supporting the saw blade 4 to further tension the saw blade 4, and the support balls 393 supporting the sliding rod 391 from the inner end.

A buffer mechanism 394 is arranged between the inner wall of the fixed ring 38 and the sliding rod 391, the buffer mechanism 394 comprises upper stoppers 3941, the upper stoppers 3941 are uniformly arranged on the inner wall of the fixed ring 38, the upper stoppers 3941 and the arc-shaped plate 392 are correspondingly distributed, the sliding rod 391 sequentially penetrates through the fixed ring 38 and the upper stoppers 3941, a lower stopper 3943 is arranged at the bottom end of the sliding rod 391, a buffer spring 3942 is arranged between the upper stopper 3941 and the lower stopper 3943, and the buffer spring 3942 is positioned on the periphery of the sliding rod 391; when saw bit 4 receives stress impact, saw bit 4 drives arc 392 and rocks, arc 392 drives slide rod 391 and slides in last dog 3941, go up the distance between dog 3941 and the lower dog 3943 and change, and then force buffer spring 3942 compressed or extension, play good cushioning effect, with protection saw bit 4, reduce the processing cost, in addition, retainer plate 38 is installed in U type frame 31 through the installation pole, play the effect of stabilizing slide rod 391.

The lateral shaft 331 is provided with a lateral blocking mechanism 34, the lateral blocking mechanism 34 comprises a blocking piece 343, the blocking piece 343 is arranged between the bottom end of the sliding rod 391 and the supporting ball 393, the periphery of the lateral shaft 331 is provided with a fold line type side plate 341, the inner top end of the fold line type side plate 341 is provided with a limiting fixture block 342, the limiting fixture block 342 is used for limiting the blocking piece 343, and further limiting the supporting ball 393 from moving along the circumferential direction of the lateral shaft 331; the cross shaft 331 fixes the fold line type side plate 341, the fold line type side plate 341 fixes the limit fixture block 342, the limit fixture block 342 limits the blocking piece 343 from two ends, and further limits the support ball 393, so that the support ball 393 is prevented from moving along the circumferential direction of the cross shaft 331, and the power on the cross shaft 331 is ensured to be stably transmitted to the arc-shaped plate 392, so as to drive the saw blade 4 to rotate.

The working principle is as follows:

the height of the adjusting mechanism 5 can be adjusted through the adjusting mechanism 5, the tension degree of the saw blade 4 is initially adjusted, then the tension degree of the saw blade 4 is further adjusted through the tensioning mechanism 3, the tensioning effect is good, the phenomenon of saw clamping is avoided, and the working efficiency is improved; when the saw blade 4 is subjected to stress impact, the distance between the upper stopper 3941 and the lower stopper 3943 changes, so that the buffer spring 3942 is forced to be compressed or extended, a good buffering effect is achieved, the saw blade 4 is protected, and the processing cost is reduced.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A band sawing machine comprises a machine frame (1), wherein an adjusting mechanism (5) is arranged on the top surface of the machine frame (1), a lower rotating wheel (2) is arranged below the machine frame (1), a tensioning mechanism (3) is arranged at the top end of the adjusting mechanism (5), a saw blade (4) is arranged between the tensioning mechanism (3) and the lower rotating wheel (2), a protective cover (11) is arranged on the machine frame (1), and the protective cover (11) is used for protecting the adjusting mechanism (5) and the tensioning mechanism (3); the method is characterized in that:

the tensioning mechanism (3) comprises a U-shaped frame (31), the U-shaped frame (31) is arranged on the top end of the adjusting mechanism (5), a transverse shaft (331) is arranged between the top ends of the two sides of the U-shaped frame (31) through a bearing, a motor (332) is arranged on the outer side of the U-shaped frame (31) through an installation shell, an output shaft of the motor (332) is connected with the right end of the transverse shaft (331) through a coupler, a supporting roller (32) is sleeved on the periphery of the transverse shaft (331), a sliding groove (35) is formed in the center of the supporting roller (32), a fixing block (36) is arranged on the outer surface of the transverse shaft (331), the fixing block (36) is located in the sliding groove (35), and when the transverse shaft (331) rotates, the supporting roller (32) is driven to rotate through the fixing block (36);

a left air cylinder (371) is arranged between the left end of the supporting roller (32) and the left end of the U-shaped frame (31), a right air cylinder (372) is arranged between the right end of the supporting roller (32) and the right end of the U-shaped frame (31), a fixing ring (38) is arranged on the periphery of the supporting roller (32), sliding rods (391) are uniformly inserted in the circumferential direction of the fixing ring (38), an arc-shaped plate (392) is arranged at the outer end of each sliding rod (391), the arc-shaped plate (392) is matched with the saw blade (4), supporting balls (393) are arranged at the bottom end of each sliding rod (391), and the supporting balls (393) are tightly attached to the outer surface of the supporting roller (32);

a buffer mechanism (394) is arranged between the inner wall of the fixed ring (38) and the sliding rod (391), and a side stop mechanism (34) is arranged on the transverse shaft (331).

2. A band saw machine according to claim 1, wherein: adjusting mechanism (5) are including founding a section of thick bamboo (54), found a section of thick bamboo (54) vertical setting on frame (1) top surface, it is equipped with pole setting (51) to found a section of thick bamboo (54) interpolation, pole setting (51) right side is equipped with rack (52), it is equipped with gear (53) to found a section of thick bamboo (54) internal rotation, and gear (53) and rack (52) intermeshing, gear (53) side is equipped with the adjusting disk, and the adjusting disk extends to founding a section of thick bamboo (54) outside, it is equipped with between bottom surface and pole setting (51) bottom surface to found a section of thick bamboo (54) and supports cylinder (55), it is equipped with stopper (56) to found a section of thick bamboo (54) interior top, stopper (56) are used for spacing pole setting (51).

3. A band saw machine according to claim 1, wherein: the buffer mechanism (394) comprises an upper stop block (3941), the upper stop block (3941) is uniformly arranged on the inner wall of the fixing ring (38), the upper stop block (3941) and the arc-shaped plate (392) are correspondingly distributed, the sliding rod (391) sequentially penetrates through the fixing ring (38) and the upper stop block (3941), a lower stop plate (3943) is arranged at the bottom end of the sliding rod (391), a buffer spring (3942) is arranged between the upper stop block (3941) and the lower stop plate (3943), and the buffer spring (3942) is located on the periphery of the sliding rod (391).

4. A band saw machine according to claim 1, wherein: the side blocking mechanism (34) comprises a blocking piece (343), the blocking piece (343) is arranged between the bottom end of the sliding rod (391) and the supporting ball (393), a fold line type side plate (341) is arranged on the periphery of the cross shaft (331), a limiting clamping block (342) is arranged at the inner top end of the fold line type side plate (341), and the limiting clamping block (342) is used for limiting the blocking piece (343) and further limiting the supporting ball (393) to move along the circumferential direction of the cross shaft (331).

5. A band saw machine according to claim 1, wherein: the supporting roller (32) adopts a revolving body structure, the diameter of the left end of the revolving body structure is larger than that of the right end of the revolving body structure, inclined surface transition is adopted between the left end and the right end of the revolving body structure, supporting grooves (395) are formed in the left end and the right end of the revolving body structure, and supporting balls (393) are arranged in the supporting grooves (395).

6. A band saw machine according to claim 5, characterized in that: the length of spout (35) is greater than the distance between support groove (395) on the left and right both ends of revolution solid structure, support groove (395) are arc structure, and support groove (395) and support ball (393) the center the same.

7. A band saw machine according to claim 1, wherein: the inner of left side cylinder (371), right cylinder (372) all is equipped with the mounting panel, the mounting panel is loop configuration, and loop configuration is located the periphery of cross axle (331), the mounting panel inboard evenly is equipped with the side and keeps off the ball, and the tip that the side kept off ball and backing roll (32) is hugged closely.