CN113232096A

CN113232096A - Efficient vertical frame saw

Info

Publication number: CN113232096A
Application number: CN202110575490.8A
Authority: CN
Inventors: 翁涵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-08-10

Abstract

A high-efficiency vertical frame saw comprises a base, a motor, an upper box seat, a sawing mechanism and two eccentric link mechanisms; the motor drives the two eccentric link mechanisms to drive the sawing mechanism to move up and down; the two eccentric link mechanisms are connected through a main shaft; the main shaft is provided with a first chain wheel, and the base is also provided with a transmission mechanism; the first chain wheel is connected with the transmission mechanism; the transmission mechanism is connected with one end of the two small connecting rods; the other ends of the two small connecting rods are respectively and fixedly connected to two side edges of the sawing mechanism close to the bottom; the middle parts of the two sides of the sawing mechanism are respectively provided with a central shaft which is fixed on the upper box seat; the motor drives the first main shaft to rotate, a first chain wheel on the first main shaft drives the transmission mechanism, and the transmission mechanism drives the two small connecting rods to drive the sawing mechanism to swing left and right; the saw blade moves from left to right after moving from top to bottom, moves from right to left after moving from bottom to top, and repeats. The saw blade provided by the invention can be used for sawing wood when moving downwards and upwards, so that the working efficiency is improved.

Description

Efficient vertical frame saw

Technical Field

The invention belongs to the technical field of frame sawing machines, and particularly relates to a high-efficiency vertical frame sawing machine.

Background

The frame saw is a machine which tensions a plurality of saw blades on a saw frame, and drives the saw frame to do reciprocating motion up and down or left and right by a crank (eccentric) connecting rod mechanism, so that the plurality of saw blades arranged on the saw frame saw longitudinally saw round wood or wood.

Frame sawing machine that uses in the existing market, it includes the frame, including a motor, a machine, the main shaft, a workbench, frame bow, the motor is installed in the frame, the motor passes through the belt and drives the main shaft rotation, a plurality of saw blades tension side by side installs on frame bow, the workstation passes through the leading wheel and installs on the guide rail that the frame is improved level and is set up, frame both sides top is equipped with the support, the inboard installation of support is fixed with the slide rail, be equipped with two sets of eccentric link mechanism on the main shaft, eccentric link mechanism's upper end links to each other with frame bow's lower frame, be equipped with the slide on frame bow side frame, the motor drives the main shaft rotation, and then drives frame bow through eccentric link mechanism and reciprocates along the inboard slide rail of two supports. The frame type saw bow has the advantages of compact structure, simple operation and convenient adjustment.

However, the vertical frame saw of this structure has a drawback: because the guide rail of upper and lower slider is fixed, consequently, the slider is down, when driving the saw blade (the structure of the saw blade of prior art is shown in fig. 1) downstream (as shown in fig. 2), saw cut timber, the saw blade lifts up when the slider upwards drives the saw blade upward movement (as shown in fig. 3), this stage does not produce the action of saw cutting to timber, but the chip removal, consequently, the cycle from top to bottom, only when downwards, there is the effect of saw cutting, ascending time, belong to the space phase (chip removal phase), consequently, the whole machining efficiency is low. And when sawing large wood, the saw dust can be completely discharged by large strokes of the saw dust, such as the log and the like, which also increases the difficulty and complexity of mechanical manufacture.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a high-efficiency vertical frame saw, wherein a saw blade saw cuts wood when moving downwards and upwards.

The invention is realized by the following steps:

a high-efficiency vertical frame saw comprises a base, a motor, an upper box seat, a sawing mechanism and two eccentric link mechanisms; the motor is arranged below the base; the upper box seat is arranged above the base, and the sawing mechanism is arranged in the upper box seat; the saw cutting mechanism includes: a swing seat, a saw frame, a frame type saw bow and a plurality of saw blades; the plurality of saw blades are arranged on the frame type saw bow in a parallel and tensioned manner; two sides of the frame type saw bow are fixed in the saw frame; sliding blocks are arranged on two sides of the saw frame and matched with the sliding rails on two sides of the swinging seat; the motor drives the two eccentric link mechanisms to drive the sliding blocks on the two sides of the saw frame to move up and down on the sliding rails on the two sides of the swinging seat; the two eccentric link mechanisms are connected through a main shaft;

the main shaft is provided with a first chain wheel, and the base is also provided with a transmission mechanism; the first chain wheel is connected with the transmission mechanism; the transmission mechanism is connected with one end of the two small connecting rods; the other ends of the two small connecting rods are respectively and fixedly connected to two side edges of the swinging seat close to the bottom; the middle parts of two sides of the swinging seat are respectively provided with a central shaft which is fixed on the upper box seat;

the motor drives the first main shaft to rotate, a first chain wheel on the first main shaft drives the transmission mechanism, and the transmission mechanism drives the two small connecting rods to drive the swing seat to swing left and right; the saw blade moves from left to right after moving from top to bottom, and then moves from right to left after moving from bottom to top, and the process is repeated.

Further, the transmission mechanism includes: the device comprises a first connecting shaft, a second connecting shaft, a third connecting shaft, a second chain wheel, a third chain wheel, a fourth chain wheel, a first chain, a second chain, a first gear, a second gear and two eccentric discs;

the first connecting shaft is arranged in the base; the second connecting shaft and the third connecting shaft are arranged in the upper box base above the first connecting shaft; the third connecting shaft is arranged above the second connecting shaft; the first connecting shaft is provided with the second chain wheel and the third chain wheel; the second connecting shaft is provided with the fourth chain wheel and the first gear; the middle part of the third connecting shaft is provided with the second gear, and two ends of the third connecting shaft are respectively provided with the eccentric disc; the first chain wheel is connected with the second chain wheel through the first chain; the third chain wheel and the fourth chain wheel are connected through the second chain; the first gear is meshed with the second gear; the two eccentric discs are respectively connected with one end of the small connecting rod;

the motor drives the first main shaft to rotate, and a first chain wheel on the first main shaft sequentially drives the second chain wheel, the third chain wheel, the first gear, the second gear and the two eccentric discs, so that the two small connecting rods are driven to drive the swing seat to swing left and right; the saw blade moves from left to right after moving from top to bottom, and then moves from right to left after moving from bottom to top, and the process is repeated.

Further, a part of the upper half part of the saw blade is an upper tooth, and a part of the lower half part of the saw blade is a lower tooth.

Furthermore, one part of the upper half part of the saw blade close to the upper end is provided with upper teeth, one part of the lower half part close to the lower end is provided with lower teeth, and the middle part is provided with upper and lower teeth which are alternately arranged.

The invention has the advantages that: the saw blade is designed in such a way that the saw teeth of the upper half part partially incline upwards, the saw teeth of the lower half part partially incline downwards, the rest middle parts are alternately arranged up and down, the motion track of the saw blade is changed into a shape of 8, the saw blade moves towards the oblique right lower part (the lower half part of the saw blade performs saw cutting on the lower half part of a log, the saw teeth of the upper part perform chip removal), the saw blade moves towards the oblique right upper part (the upper half part of the saw blade performs saw cutting on the upper half part of the log, the saw teeth of the lower part perform chip removal), and then the saw blade moves towards the oblique right lower part … so as to alternately operate. The saw blade of the invention respectively saw the upper half part or the lower half part of the log in each upward movement or downward movement, thereby improving the chip removal mode, reducing the requirement on mechanical stroke and greatly improving the working efficiency.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic view of the structure of a saw blade of a vertical frame saw machine of the prior art.

Fig. 2 is a schematic view illustrating a state in which a saw blade of a vertical type frame saw of the related art moves downward.

Fig. 3 is a schematic view showing an upward movement state of a saw blade of a vertical type frame saw machine according to the prior art.

Fig. 4 is a front view of the vertical frame saw of the present invention.

Fig. 5 is a left side view of the base portion of the vertical frame saw of the present invention.

Fig. 6 is a right side view of the saw cutting mechanism of the vertical frame saw of the present invention.

Fig. 7 is a top view of a base portion of the vertical frame saw of the present invention.

Fig. 8 is a schematic view showing the structure of a saw blade of the vertical frame saw of the present invention.

Fig. 9 is a schematic view showing a state in which a saw blade of the vertical type frame saw of the present invention is moved downward.

Fig. 10 is a schematic view showing an upward movement state of a saw blade of the vertical frame saw of the present invention.

Fig. 11 is a schematic view showing the left and right movement of the saw cutting mechanism of the vertical frame saw of the present invention.

Fig. 12 is a schematic view showing the structure of a saw frame of the vertical frame saw of the present invention.

Fig. 13 is a schematic view showing a frame bow and a saw blade coupled structure of the vertical frame saw of the present invention.

Fig. 14 is a schematic view of a saw frame, a sash bow and a saw blade cooperating structure of the vertical frame saw of the present invention.

Reference numerals: the device comprises a base 1, a motor 2, a small belt pulley 3, a large belt pulley 4, a flywheel 5, a main shaft 6, a first chain wheel 7, a connecting rod 8, a first connecting shaft 9, a second chain wheel 10, a third chain wheel 11, a first gear 12, a second connecting shaft 13, a fourth chain wheel 14, an eccentric disc 15, a second gear 16, a small connecting rod 17, a third connecting shaft 18, a triangular belt 19, an upper box base 20, a swing base 21, a sliding rail 22, a sliding block 23, a first chain 24, a central shaft 25, a saw frame 26, a frame type saw bow 27, a saw blade 28, a support plate 29 and a connecting shaft 30.

Detailed Description

Referring to fig. 4 to 14, in a high-efficiency vertical frame saw, a motor 2 is disposed below a base 1, an upper case base 20 is disposed above the base 1, and a sawing mechanism is disposed in the upper case base 20; the saw cutting mechanism includes: a swinging seat 21, a saw frame 26, a frame type saw bow 27 and a plurality of saw blades 28; a plurality of saw blades 28 are arranged on the frame type saw bow 27 in a parallel and tensioned manner; the two sides of the frame saw bow 27 are fixed in the saw frame 26, and the two sides of the saw frame 26 are provided with slide blocks 23 which are sleeved on the slide rails 22 at the two sides of the swing seat 21.

The motor 2 drives the small belt pulley 3 to rotate, the small belt pulley 3 drives the large belt pulley 4 to rotate through the triangular belt 19, the large belt pulley 4 is connected with a flywheel 5 through a main shaft 6, the flywheel 5 and the large belt pulley 4 are respectively connected to the sliding blocks 23 on two sides of the frame type saw bow 27 through a connecting rod 8, and the two connecting rods 8 drive the sliding blocks 23 on two sides of the saw frame 26 to move up and down on the sliding rails 22 on two sides of the swing seat 21.

A first chain wheel 7 is arranged in the middle of the main shaft 6, a first connecting shaft 9 is arranged in the base 1 beside the main shaft 6, and a second connecting shaft 13 and a third connecting shaft 18 are arranged in an upper box base 20 above the first connecting shaft 9; the third connecting shaft 18 is arranged above the second connecting shaft 13; a second chain wheel 10 and a third chain wheel 11 are arranged on the first connecting shaft 9; a fourth chain wheel 14 and the first gear 12 are arranged on the second connecting shaft 13; the middle part of the third connecting shaft 18 is provided with a second gear 16, and two ends of the third connecting shaft are respectively provided with an eccentric disc 15; the first chain wheel 7 is connected with the second chain wheel 10 through a first chain 24; the third chain wheel 11 and the fourth chain wheel 14 are connected through a second chain 31; the first gear 12 is meshed with the second gear 16; the two eccentric discs 15 are respectively connected with one end of a small connecting rod 17; the other ends of the two small connecting rods 17 are respectively connected to two sides of the saw frame 26 close to the bottom, the middle parts of two sides of the saw frame 26 are respectively provided with a central shaft 25 fixed on the upper box base 20, the central shaft 25 is installed on a support plate 29 through a bearing, and the support plate 29 is fixed on the upper box base 20 through bolts.

When the sawing machine works, the motor 2 drives the main shaft 6 to rotate, the first chain wheel 7 on the main shaft 6 sequentially drives the second chain wheel 10, the third chain wheel 11, the first gear 12, the second gear 16 and the two eccentric discs 15, so that the two small connecting rods 17 are driven to drive the swinging seat 21 to regularly swing left and right by taking the central shaft 25 (the middle part of a sawing material) as the center, and the flywheel 5 and the large leather wheel 4 on the two sides of the main shaft 6 drive the two connecting rods 8 to drive the sawing frame 26 to move up and down.

The specific movement sequence is as follows: the saw frame 26 moves from top to bottom, then the swing seat 21 drives the saw frame 26 to move from left to right, the rear saw frame 26 moves from bottom to top, then the swing seat 21 drives the saw frame 26 to move from right to left, so as to complete an 8-shaped motion track, and the motion track moves repeatedly according to the motion track.

The saw blade structure in this embodiment is shown in fig. 8, in which the upper half of the saw blade 28 is an upper tooth near the upper end, the lower half is a lower tooth near the lower end, and the upper and lower teeth are alternately arranged in the middle. When the motor 2 operates to drive the saw frame 26 to reciprocate up and down, the swing seat 21 swings left and right once to enable the saw frame 26 to realize an 8-shaped motion track, when the small connecting rod 17 rotates to a point through the eccentric disc 15, the swing seat 21 enables the saw blade 28 to reach a position, namely the saw blade 28 saw right upwards along a certain oblique angle, and when the small connecting rod 17 rotates to a point through the eccentric disc 15, the swing seat 21 enables the saw blade 28 to reach a position b, namely the saw blade 28 saw right downwards along a certain oblique angle, so that the saw blade 28 realizes the 8-shaped motion track.

The saw blade of the invention is designed in such a way that the saw teeth of the upper half part partially incline upwards, the saw teeth of the lower half part partially incline downwards, the rest middle parts are alternately arranged up and down, and the motion track of the saw blade is in an 8 shape. The saw blade moves to the oblique lower right, the lower half of the saw blade saws the lower half of the log (the shaded part in figure 9), chips are discharged downwards, the original saw teeth of the upper half are swung to a point b (figure 11) due to the swing seat 21, so that the saw teeth are separated from the original sawing surface (figure 9), and the saw teeth and the saw chips of the upper half are discharged instantly. Similarly, when the saw blade moves obliquely to the upper right, the upper half part of the saw blade saws the upper half part of the log (shaded part in fig. 10), chips are discharged upwards, the saw teeth of the original lower half part swing to a point a (fig. 9) due to the swing seat 21, so that the saw teeth leave the original sawing surface (fig. 10), and the saw teeth and the saw chips of the lower half part are discharged instantly. The blade then alternates in this manner in a further downward and oblique motion …. The saw blade provided by the invention can respectively saw the upper half part or the lower half part of the log in each upward movement or downward movement, so that the chip removal mode is improved, the requirement on mechanical stroke is reduced, the working efficiency is greatly improved, and the manufacturing complexity of large-diameter material sawing equipment is greatly reduced.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A high-efficiency vertical frame saw comprises a base, a motor, an upper box seat, a sawing mechanism and two eccentric link mechanisms; the motor is arranged below the base; the upper box seat is arranged above the base, and the sawing mechanism is arranged in the upper box seat; the saw cutting mechanism includes: a swing seat, a saw frame, a frame type saw bow and a plurality of saw blades; the plurality of saw blades are arranged on the frame type saw bow in a parallel and tensioned manner; two sides of the frame type saw bow are fixed in the saw frame; sliding blocks are arranged on two sides of the saw frame and matched with the sliding rails on two sides of the swinging seat; the motor drives the two eccentric link mechanisms to drive the sliding blocks on the two sides of the saw frame to move up and down on the sliding rails on the two sides of the swinging seat; the two eccentric link mechanisms are connected through a main shaft;

the method is characterized in that: the main shaft is provided with a first chain wheel, and the base is also provided with a transmission mechanism; the first chain wheel is connected with the transmission mechanism; the transmission mechanism is connected with one end of the two small connecting rods; the other ends of the two small connecting rods are respectively and fixedly connected to two side edges of the swinging seat close to the bottom; the middle parts of two sides of the swinging seat are respectively provided with a central shaft which is fixed on the upper box seat;

2. A high efficiency vertical frame saw machine according to claim 1 wherein: the transmission mechanism comprises: the device comprises a first connecting shaft, a second connecting shaft, a third connecting shaft, a second chain wheel, a third chain wheel, a fourth chain wheel, a first chain, a second chain, a first gear, a second gear and two eccentric discs;

3. A high efficiency vertical frame saw machine according to claim 1 or 2 wherein: one part of the upper half part of the saw blade is an upper tooth, and one part of the lower half part of the saw blade is a lower tooth.

4. A high efficiency vertical frame saw machine according to claim 3 wherein: the saw blade is characterized in that one part of the upper half part of the saw blade, which is close to the upper end, is provided with upper teeth, one part of the lower half part, which is close to the lower end, is provided with lower teeth, and the middle part is provided with upper and lower teeth which are alternately arranged.