CN217991149U

CN217991149U - Saw band hold-down mechanism of band sawing machine

Info

Publication number: CN217991149U
Application number: CN202221578830.9U
Authority: CN
Inventors: 吴忠俊; 吴丽光; 张武伟; 蒋浪鹏
Original assignee: Zhejiang Huntsman Intelligent Machinery Co ltd
Current assignee: Zhejiang Huntsman Intelligent Machinery Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-12-09
Anticipated expiration: 2032-06-22

Abstract

The utility model provides a saw area hold-down mechanism of band sawing machine belongs to mechanical technical field. This band saw (ing) machine's saw band hold-down mechanism, including the assembly jig and compress tightly the guide, compress tightly the guide and connect on the assembly jig, compress tightly the guide and include mount pad, compact heap and two bearings, the compact heap links firmly at the middle part of mount pad, two the bearing is connected respectively at the both ends about the mount pad, and is located the left and right sides of compact heap respectively. It leads through the oppression along the back of the body of saw area jointly through compact heap and two bearings that are located the compact heap both sides, and the job stabilization nature of saw area is good, simultaneously because compact heap and two bearings can share the atress, reduce the wearing and tearing of work piece, increase of service life reduces to change the frequency higher, practices thrift manufacturing cost, improves production efficiency.

Description

Saw band hold-down mechanism of band sawing machine

Technical Field

The utility model belongs to the technical field of machinery, a band sawing machine is related to, especially a band sawing machine's saw area hold-down mechanism.

Background

The band sawing machine is a machine tool for sawing various metal materials, and is replacing the traditional hacksaw machine and circular sawing machine gradually because of the fast cutting speed, high size precision, small material loss and wide sawing range of the band sawing machine, and in use, the band sawing machine needs to correct and guide the position of a saw band, as in the Chinese patent (authorization publication number: CN 213496917U discloses an intelligence saw takes upward pressure detection mechanism, including the assembly jig, the bottom embedding saw area of assembly jig, the both sides face and the assembly jig of saw area form sliding contact, the sawtooth of saw area is down and exposes the bottom of assembly jig, the back of the body of saw area is up, the top of saw area sets up a hold-down part, the hold-down part includes compression bar and pinch roller, the pinch roller articulates the lower extreme at the compression bar, the pinch roller is pressed and is established on the back of the body of saw area, still adorn pressure sensor admittedly in the assembly jig, pressure sensor's pressure probe stretches out downwards, pressure probe's bottom links firmly the top of compression bar. The saw band guide mechanism guides the position of the saw band through the pressing wheel, after the saw band guide mechanism is used for a long time, the wheel surface of the pressing wheel is easy to wear, the replacement frequency is high, the production cost is increased, and meanwhile, the production efficiency is low.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a saw band pressing mechanism of a band sawing machine.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a saw area hold-down mechanism of band saw machine, includes the assembly jig and compresses tightly the guide, compress tightly the guide and connect on the assembly jig, its characterized in that, it includes mount pad, compact heap and two bearings to compress tightly the guide, the compact heap links firmly at the middle part of mount pad, two the bearing is connected respectively at both ends about the mount pad, and is located the left and right sides of compact heap respectively.

In the saw band pressing mechanism of the band sawing machine, the hardness of the pressing block is higher than the wheel surface hardness of the bearing.

In the saw band pressing mechanism of the band sawing machine, the pressing block is made of 42CrMo steel material.

In the saw band pressing mechanism of the band sawing machine, the bottom surface of the pressing block is lower than the lowest point of the wheel surfaces of the two bearings.

In the saw band pressing mechanism of the band sawing machine, the distance between the bottom surface of the pressing block and the lowest point of the wheel surfaces of the two bearings is less than 1mm.

In the saw band pressing mechanism of the band sawing machine, the pressing block is a rectangular long strip block, and the bottom surface of the pressing block, which is used for being in contact with the back edge of the saw band, is made into a rectangular shape.

In the saw band pressing mechanism of the band sawing machine, the two bearings are symmetrically arranged on the left side and the right side of the pressing block.

In the saw band pressing mechanism of the band sawing machine, the assembling frame is provided with a clamping structure used for clamping two side surfaces of the saw band.

In foretell band saw machine's saw area hold-down mechanism, clamping structure includes grip block subassembly and centre gripping wheel subassembly, the grip block subassembly is located the below of mount pad, compact heap and bearing, the centre gripping wheel subassembly is located the right side below of mount pad.

Compared with the prior art, the utility model has the advantages of it is following:

1. the saw band pressing mechanism of the band sawing machine performs pressing and guiding on the back edge of the saw band through the pressing block and the two bearings positioned on the two sides of the pressing block, the working stability of the saw band is good, and meanwhile, the pressing block and the two bearings can share stress, so that the abrasion of a workpiece is reduced, the service life is prolonged, the replacement frequency is reduced, the production cost is saved, and the production efficiency is improved;

2. the saw band pressing mechanism of the band sawing machine is characterized in that the bottom surface of the pressing block with high structural strength is lower than the lowest point of the wheel surfaces of the two bearings with relatively low structural strength, and when a saw band is driven, the saw back is firstly contacted with the pressing block and then contacted with the wheel surfaces of the bearings, namely, the pressing block is stressed firstly and then the bearings are stressed, so that the abrasion of the pressing block can be reduced, the abrasion of the bearings can be reduced, the stress of the saw band can be dispersed through three-point contact, and the abrasion of the saw band is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a perspective view of the present invention with a partial structure.

Fig. 3 is a front view of the partial structure of the present invention.

Fig. 4 is a schematic structural view of the pressing guide of the present invention.

In the figure, 1, a mounting bracket; 2. a pressing guide; 3. a mounting seat; 4. a compression block; 5. a bearing; 6. a clamp block assembly; 7. a clamping wheel assembly; 8. a saw band.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Referring to fig. 1 to 4, the saw band pressing mechanism of the band sawing machine of the present embodiment includes a mounting bracket 1, and the mounting bracket 1 is provided with a pressing guide 2 pressing on the back edge of a saw band 8 and a clamping structure for clamping on two side surfaces of the saw band 8. Compress tightly guide 2 and connect in the bottom of assembly jig 1, compress tightly guide 2 and include mount pad 3, compact heap 4 and two bearings 5, compact heap 4 links firmly at the middle part of mount pad 3 through the locating pin, and two bearings 5 are connected respectively at both ends about mount pad 3 through the round pin axle, and are located the left and right sides of compact heap 4 respectively, and the hardness of compact heap 4 is higher than the wheel face hardness of bearing 5, and is concrete, and compact heap 4 is made by 42CrMo steel material. The 42CrMo steel belongs to ultrahigh-strength steel, has high strength and toughness, good hardenability, no obvious temper brittleness, higher fatigue limit and multiple impact resistance after quenching and tempering, good low-temperature impact toughness and difficult abrasion. The clamping structure comprises a clamping block assembly 6 and a clamping wheel assembly 7, wherein the clamping block assembly 6 is located below the mounting seat 3, the pressing block 4 and the bearing 5, and the clamping wheel assembly 7 is located on the right lower side of the mounting seat 3, namely the clamping wheel assembly 7 is located on one side where the saw band 8 is transmitted into.

Further preferably, the bottom surface of the compression block 4 is lower than the lowest points of the wheel surfaces of the two bearings 5, and the distance between the bottom surface of the compression block 4 and the lowest points of the wheel surfaces of the two bearings 5 is less than 1mm. When the saw belt 8 is in transmission, the saw back 8 is firstly in contact with the pressing block 4 and then in contact with the wheel surface of the bearing 5, namely, the pressing block 3 is stressed firstly and then the bearing 5 is stressed, so that the abrasion of the pressing block 4 and the bearing 5 can be reduced, and the abrasion of the saw belt 8 can be reduced by three-point contact and dispersing the stress of the saw belt 8.

Further preferably, the pressing block 4 is a rectangular long block, the bottom surface of the pressing block, which is used for being in contact with the back edge of the saw belt, is made to be rectangular, the contact stress of the pressing block 4 and the saw belt 8 is more sufficient, and local abrasion is avoided.

Further preferably, the two bearings 5 are symmetrically arranged at the left and right sides of the pressing block 4. The stress is more even, and not fragile.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a saw area hold-down mechanism of band saw bed, includes assembly jig (1) and compresses tightly guide (2), it connects on assembly jig (1) to compress tightly guide (2), its characterized in that, it includes mount pad (3), compact heap (4) and two bearings (5) to compress tightly guide (2), compact heap (4) link firmly at the middle part of mount pad (3), two both ends about mount pad (3) are connected respectively in bearing (5), and are located the left and right sides of compact heap (4) respectively.

2. The saw band pressing mechanism of a band sawing machine according to claim 1, characterised in that the hardness of the pressing block (4) is higher than the wheel face hardness of the bearing (5).

3. Saw band pressing mechanism of a band sawing machine according to claim 2, characterised in that the pressing block (4) is made of a 42CrMo steel material.

4. The band pressing mechanism of a band sawing machine according to claim 3, characterized in that the bottom surface of the pressing block (4) is lower than the lowest point of the wheel surfaces of the two bearings (5).

5. The saw band pressing mechanism of a band sawing machine according to claim 4, characterized in that the distance between the bottom surface of the pressing block (4) and the lowest point of the wheel surfaces of the two bearings (5) is less than 1mm.

6. The band pressing mechanism for band saw machine according to claim 1 or 2 or 3 or 4 or 5, wherein said pressing block (4) is a rectangular bar block, and the bottom surface of the pressing block contacting with the back edge of the band is rectangular.

7. The saw band pressing mechanism of a band sawing machine according to claim 1 or 2 or 3 or 4 or 5, characterized in that the two bearings (5) are symmetrically arranged on the left and right sides of the pressing block (4).

8. The band pressing mechanism of band sawing machine according to claim 1 or 2 or 3 or 4 or 5 characterized in that the mounting bracket (1) is provided with clamping structures for clamping on both sides of the band (8).

9. The saw band pressing mechanism of the band sawing machine according to claim 8, wherein the clamping structure comprises a clamping block assembly (6) and a clamping wheel assembly (7), the clamping block assembly (6) is located below the mounting seat (3), the pressing block (4) and the bearing (5), and the clamping wheel assembly (7) is located at the lower right of the mounting seat (3).