CN221582220U

CN221582220U - Resistance mechanism and band saw blade tooth dividing system

Info

Publication number: CN221582220U
Application number: CN202323347174.9U
Authority: CN
Inventors: 成有才
Original assignee: Hunan Taijia Intelligent Technology Co ltd
Current assignee: Hunan Taijia Intelligent Technology Co ltd
Priority date: 2023-12-08
Filing date: 2023-12-08
Publication date: 2024-08-23
Anticipated expiration: 2033-12-08

Abstract

The utility model provides a resistance mechanism and a band saw blade tooth dividing system. The resistance mechanism comprises a base, a first support and a second support are arranged on the base at intervals, a first clamping block is arranged on the first support, a second clamping block is arranged on the second support, a clamping cavity is formed between the first clamping block and the second clamping block, and the first clamping block is driven by a driving mechanism to be close to or far away from the second clamping block, so that the size of an opening of the clamping cavity is adjustable. According to the utility model, the clamping of the band saw blade is realized in a mode that one end is fixed and the other end is adjustable, so that the resistance of the band saw blade is adjustable, the friction resistance with proper magnitude is obtained, the change of the tooth dividing position of the band saw blade caused by feeding inertia and receiving tension is prevented, and the stability of tooth dividing precision is ensured.

Description

Resistance mechanism and band saw blade tooth dividing system

Technical Field

The utility model relates to the technical field of band saw blade processing, in particular to a resistance mechanism and a band saw blade tooth dividing system.

Background

Band saw blades are widely used for sawing various metal and non-metal materials. One process in the production process of the band saw blade is tooth separation, and a tooth separation machine is generally adopted to widen the saw path of the band saw blade through tooth separation, so that the phenomena of clamping saw and clamping stagnation in the sawing process are avoided.

The existing tooth dividing system is shown in fig. 1, and comprises a table top 8, a tooth dividing machine arranged on the table top 8, a material placing machine 6 arranged on one side of the tooth dividing machine, and a material receiving machine 1 arranged on the other side of the tooth dividing machine. The tooth divider is provided with two open-close jaws 3, and the saw blade can be clamped and loosened through the opening and closing of the jaws 3. The sliding plate 14 is provided with a tooth dividing die, the sliding plate is driven by a tooth dividing servo motor 15 through a ball screw, and the opening and closing of the sliding plate 14 drives the tooth dividing die to act so as to push and dislocation the saw teeth and realize tooth dividing. The band saw blade 10 is discharged from the discharging machine 6, and is coiled in the receiving machine 1 after being divided into teeth at the jaw 3. The band saw blade 10 walks in this process to form a walking path. The band saw blade 10 needs to be kept in a horizontal straight line when entering the jaw 3, for which purpose the tooth feed mechanism 4 and the butt clamp bearing 5 are provided at the same point, respectively. The pair of the clamping bearings 5 are provided with four groups in pairs for guiding the side surfaces of the band saw blade 10, and the bottom edge of the band saw blade is provided with a supporting bearing.

The travel amount of the band saw blade 10 is controlled by a servo driving mechanism of the tooth feeding mechanism 4, the travel amount is a fixed value, the tooth feeding mechanism pushes a saw tooth front angle to forward through a pusher dog to feed teeth in a unidirectional fixed travel amount, the saw blade cannot retreat, but has the degree of freedom of forward travel, after clamping the jaw 3, the saw blade is completely positioned, the tooth feeding mechanism 4 retreats, and before clamping the jaw 3, the pusher dog of the tooth feeding mechanism 4 limits the saw blade to retreat, and at the moment, the resistance to the band saw blade 10 is as follows: firstly, friction resistance is generated on the band saw blade 10 through a bearing supported by the bottom edge of the band saw blade 10 and the side opposite clamp bearing 5; secondly, the jaw of the tooth divider is in an open state in the loosening process, and a certain friction resistance is formed between the jaw and two side surfaces of the band saw blade by the spring force, and the friction resistance cannot be excessively large, otherwise, the hard alloy jaw can scratch the side surfaces of the band saw blade 10.

The above two resistances are small, and are insufficient to offset the effects of the feeding inertia of the band saw blade and the receiving tension of the band saw blade, the band saw blade 10 may be displaced forward, so that the striking position of the teeth of the band saw blade changes, the forward feeding inertia of the band saw blade 10 and the receiving tension of the receiving machine 1 easily cause the forward walking position of the band saw blade 10 to exceed the actual feeding position, the teeth separating position changes, the teeth separating amount fluctuates, and the poor quality of the teeth is caused when the dislocation is large.

Disclosure of utility model

The utility model aims to provide a resistance mechanism and a band saw blade tooth dividing system so as to increase the resistance of the band saw blade during walking and avoid tooth dividing position change.

The technical scheme of the utility model is as follows: the resistance mechanism comprises a base, a first support and a second support are arranged on the base at intervals, a first clamping block is arranged on the first support, a second clamping block is arranged on the second support, a clamping cavity is formed between the first clamping block and the second clamping block, and the first clamping block is driven by a driving mechanism to be close to or far away from the second clamping block, so that the size of an opening of the clamping cavity is adjustable.

In the scheme, the clamping of the band saw blade is realized through one fixed end and one adjustable end, so that the resistance of the band saw blade is adjustable, the friction resistance with proper size is obtained, the band saw blade is prevented from causing the change of the tooth dividing position due to feeding inertia and receiving tension, and the stability of the tooth dividing precision is ensured.

Preferably, nylon clamping blocks are arranged on the surfaces, facing the clamping cavities, of the first clamping block and the second clamping block.

Preferably, the nylon clamping block is of an isosceles trapezoid structure, and the long bottom edge of the nylon clamping block is connected with the first clamping block or the second clamping block.

Preferably, one end of the nylon clamping block is inserted into the first clamping block or the second clamping block, and the other end of the nylon clamping block extends out of the clamping cavity; the side surfaces of the nylon clamping blocks are limited by the baffle plates, and the corresponding baffle plates are detachably connected to the end sides of the first clamping blocks and the second clamping blocks.

Preferably, the driving mechanism is a cylinder installed on the first support to drive the first clamping block to move.

The utility model also provides a band saw blade tooth separating machine which comprises a table top, a jaw arranged on the table top and the resistance mechanism, wherein a butt clamp bearing is arranged at the side of the jaw, a walking channel is formed between the butt clamp bearing and the jaw, a base of the resistance mechanism is arranged on the table top, the resistance mechanism is positioned at one side of the butt clamp bearing away from the jaw, and the clamp cavity is positioned on the walking channel.

Preferably, at least one third support is further arranged on the table top, at least one upper end of the third support is connected with a guide rail, at least two fourth supports are arranged at the upper end of the guide rail, a guide wheel is rotatably arranged at the top of each fourth support, and the rotation center line of the guide wheel is perpendicular to the walking channel.

Preferably, the guide wheels are respectively arranged at the upstream side and the downstream side of the resistance mechanism.

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

1. According to the utility model, a resistance mechanism is additionally arranged at the feeding position of the jaw of the tooth dividing machine, so that a constant resistance is added to the band saw blade during running, and the precision of the tooth dividing position is ensured;

2. The resistance mechanism is fixed through one end, and clamping of the band saw blade is realized through an adjustable mode of one end, so that the resistance of the band saw blade is adjustable, friction resistance with proper size is obtained, the band saw blade is prevented from causing tooth separation position change due to feeding inertia and receiving tension, and stability of tooth separation accuracy is ensured.

Drawings

FIG. 1 is a schematic diagram of a prior art tooth system;

FIG. 2 is a schematic diagram of a tooth system according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a resistance mechanism according to an embodiment of the present utility model;

FIG. 4 is an enlarged partial schematic view of the A-direction of FIG. 2;

FIG. 5 is a schematic top view of the resistance mechanism and band saw blade.

In the accompanying drawings: 1. a material receiving machine; 2. a material receiving buffer mechanism; 3. a jaw; 4. a tooth feeding mechanism; 5. a butt-clamp bearing; 6. a discharging machine; 7. a resistance mechanism; 71. a base; 72. a first support; 73. a cylinder; 74. a first clamping block; 75. nylon clamping blocks; 76. a second clamping block; 77. a second support; 78. clamping a cavity; 79. a baffle; 8. a table top; 9. a third support; 10. band saw blades; 11. a guide rail; 12. a fourth support; 13. a guide wheel; 14. a slide plate; 15. tooth-dividing servo motor.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

As shown in fig. 2, the band saw blade tooth dividing system provided in this embodiment includes a table top 8 and a tooth dividing machine disposed on the table top 8, and a jaw 3 is disposed on the tooth dividing machine. One side of the tooth dividing machine is provided with a discharging machine 6, and the other side is provided with a receiving machine 1. The table top 8 is provided with a tooth feeding mechanism 4, a butt-clamping bearing 5, a resistance mechanism 7, a tooth dividing sliding plate 14 and a tooth dividing servo motor 15 in sequence from the jaw 3 to the direction of the discharging machine 6. A material receiving buffer mechanism 2 is arranged between the tooth dividing machine and the material receiving machine 1. And a butt-clamp bearing 5 is arranged on one side of the table top 8, which is close to the material receiving buffer mechanism 2. The two sides of the jaw 3 are respectively provided with two groups of the butt clamp bearings 5. A walking channel is formed between the butt clamp bearing 5 and the jaw 3.

The band saw blade 10 coiled on the discharging machine 6 sequentially passes through the resistance mechanism 7, the butt clamp bearing 5 and the tooth feeding mechanism 4 to be clamped by the jaw 3, and the tooth dividing servo motor 15 drives the tooth dividing die on the sliding plate 14 to divide teeth. After the tooth separation is finished, the tooth is rolled up by the butt clamp bearing 5 and the material receiving buffer mechanism 2 to the material receiving machine 1 in sequence so as to finish the whole tooth separation flow.

As shown in fig. 3, the resistance mechanism 7 includes a base 71, a first support 72, an air cylinder 73, a first clamping block 74, a nylon clamping block 75, a second clamping block 76, a second support 77, a clamping cavity 78, and a baffle 79.

The base 71 is provided with a first support 72 and a second support 77 at intervals. The first support 72 is provided with a first clamping block 74 and a cylinder 73. The telescopic rod of the cylinder 73 is connected to the first clamping block 74, and the first clamping block 74 is driven to expand and contract by the expansion and contraction of the cylinder 73.

The second support 77 is provided with a second clamping block 76. A clamping cavity 78 is formed between the first clamping block 74 and the second clamping block 76, and the first clamping block 74 is driven by a driving mechanism to be close to or far from the second clamping block 76, so that the opening size of the clamping cavity 78 can be adjusted. The driving mechanism is an air cylinder 73 which is arranged on the first support 72 and drives the first clamping block 74 to move.

The surfaces of the first clamping block 74 and the second clamping block 76 facing the clamping cavity 78 are respectively provided with a nylon clamping block 75. The nylon clamping blocks 75 are of isosceles trapezoid structures. The side of the first clamping block 74 and the second clamping block 76 facing the clamping cavity 78 are provided with slots, and the long bottom edges of the nylon clamping blocks 75 are respectively inserted into the slots of the first clamping block 74 or the second clamping block 76. The slot has a bevel that contacts one waist edge of the nylon clamping block 75 and the other waist edge is limited by a baffle 79. The baffle 79 is detachably connected to the end sides of the first clamping block 74 and the second clamping block 76, respectively, by screws. By removing the baffle 79, the nylon clamping block 75 is removed again for better performance. As shown in FIG. 5, the length of the clamping cavity 78 extends in a direction that is perpendicular to the direction of travel of the band saw blade 10, and the first clamping block 74 is adjusted in a direction that is perpendicular to the direction of travel of the band saw blade 10. The nylon clip 75, which is trapezoidal in design, has inclined surfaces on both the end sides of the band saw blade 10 that enter the clip cavity 78 and the end sides that exit the clip cavity 78, and guides the entry of the band saw blade 10 through the inclined surfaces.

The air cylinder 73 drives the nylon clamping block 75 to contact with the side surface of the band saw blade 10, and the friction resistance between the nylon clamping block 75 and the band saw blade 10 is adjusted by adjusting the pressure of the air cylinder 73, so that the band saw blade 10 is adjusted to be proper in resistance, the tooth dividing position change caused by feeding inertia and receiving tension is prevented, and the stability of tooth dividing accuracy is ensured.

As shown in fig. 4, two third supports 9 are further arranged on the table top 8, and are distributed on two sides of the jaw 3, and the upper ends of the two third supports 9 are connected with a guide rail 11. The guide rail 11 may extend from the resistance mechanism 7 to the outermost butt-clamp bearing position on the left side of the jaw 3. The upper end of the guide rail 11 is provided with a plurality of fourth supports 12 in a distributed mode, the top of each fourth support 12 is provided with a rotary guide wheel 13, and the rotary center line of each guide wheel 13 is perpendicular to the walking channel. The guide wheel 13 is used for supporting the bottom edge of the band saw blade 10.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a resistance mechanism, its characterized in that, includes base (71), the interval is provided with first support (72) and second support (77) on base (71), be equipped with first clamp block (74) on first support (72), be equipped with second clamp block (76) on second support (77), be formed with between first clamp block (74) and second clamp block (76) and press from both sides chamber (78), first clamp block (74) are through actuating mechanism drive in order to be close to or keep away from second clamp block (76), make the opening size of pressing from both sides chamber (78) adjustable.

2. The resistance mechanism according to claim 1, wherein the surfaces of the first clamping block (74) and the second clamping block (76) facing the clamping cavity (78) are each provided with a nylon clamping block (75).

3. The resistance mechanism according to claim 2, characterized in that the nylon clamping block (75) is of isosceles trapezoid structure, the long base of which is connected with the first clamping block (74) or the second clamping block (76).

4. The resistance mechanism according to claim 2, wherein one end of the nylon clamping block (75) is inserted inside the first clamping block (74) or the second clamping block (76), and the other end extends into the clamping cavity (78); the side surfaces of the nylon clamping blocks (75) are limited by baffle plates (79), and the corresponding baffle plates (79) are detachably connected to the end sides of the first clamping blocks (74) and the second clamping blocks (76).

5. A resistance mechanism according to any one of claims 1-4, characterized in that the driving mechanism is a cylinder (73) mounted on the first support (72) for driving the displacement of the first clamping block (74).

6. The band saw blade tooth dividing system comprises a table top (8) and a jaw (3) arranged on the table top (8), a butt-clamp bearing (5) is arranged at the side of the jaw (3), a walking channel is formed between the butt-clamp bearing (5) and the jaw (3), and the band saw blade tooth dividing system is characterized by further comprising a resistance mechanism according to any one of claims 1-5, a base (71) of the resistance mechanism is arranged on the table top (8), the resistance mechanism is located at one side, far away from the jaw (3), of the butt-clamp bearing (5), and a clamp cavity (78) is located on the walking channel.

7. The band saw blade tooth system as defined in claim 6, wherein at least one third support (9) is further arranged on the table top (8), a guide rail (11) is connected to the upper end of at least one third support (9), at least two fourth supports (12) are arranged on the upper end of the guide rail (11), a guide wheel (13) is rotatably arranged on the top of each fourth support (12), and the rotation center line of the guide wheel (13) is perpendicular to the walking channel.

8. The band saw blade tooth system as defined in claim 7, wherein the guide wheels (13) are provided on each of the upstream and downstream sides of the resistance mechanism.