CN107626975A - Sawing machine with sawing direction from bottom to top - Google Patents

Abstract

The present invention relates to the technical field of sawing machines, and more particularly to a sawing machine with a sawing direction from bottom to top, comprising a housing, a sawing device, a transmission device and a driving member; a loading platform is provided on the top of the housing, and the loading platform is provided with a through slot; the sawing device comprises a saw blade and a telescopic member, the saw blade is arranged inside the housing and the sawing direction is from bottom to top, the telescopic member is used to drive the saw blade to extend from the through slot; the driving member drives the saw blade to rotate through the transmission device. The present invention changes the sawing direction of the sawing machine to from bottom to top, so that the sawing device and the transmission device can be arranged in a base below the sawing machine, which greatly reduces the occupation of the upper space and achieves the effect of saving space.

Description

A sawing machine with sawing direction from bottom to top

technical field

The invention relates to the technical field of sawing machines, in particular to a sawing machine with a sawing direction from bottom to top.

Background technique

A sawing machine is a device that saws metal with a rotating saw blade. The sawing direction of the current sawing machine is from top to bottom. In order to make the transmission stable, the sawing device and the transmission device of the sawing machine need to be arranged on the upper end of the sawing machine, and the bracket at the lower end of the sawing machine is hollow. This structure is unreasonable, and the space below the sawing machine is wasted in vain, making the sawing machine occupy a large space and have a heavy structure.

Contents of the invention

Aiming at the problems of the prior art, the invention provides a space-saving sawing machine whose sawing direction is from bottom to top.

The present invention adopts the following technical solutions: a sawing machine with a sawing direction from bottom to top, including a casing, a sawing device, a transmission device and a driving part; The sawing device includes a saw blade and a telescopic piece, the saw blade is arranged inside the casing and the sawing direction is from bottom to top, and the telescopic piece is used to drive the saw blade to protrude from the through slot; the drive The component drives the saw blade to rotate through the transmission device.

Preferably, the sawing device further includes a bracket and a fixing piece; the fixing piece is used to fix the saw blade and the transmission device, one end of the bracket is hinged to the fixing piece, and the other end is connected to the driving piece; one end of the telescopic piece is connected to the The fixing part is hinged, and the other end is fixed to the shell.

Preferably, the sawing device also includes a dust removal brush, a baffle and a collection box, the dust removal brush is used to remove the sawing debris of the saw blade, and the baffle is used to prevent the sawing debris of the saw blade from flying and guide the debris into the collection box.

Preferably, the baffle includes a first plate and a second plate, and the first plate and the second plate are detachably connected.

Preferably, the transmission device includes a primary wheel set and a secondary wheel set, and the driving member is sequentially connected to the saw blade through the primary wheel set and the secondary wheel set.

Preferably, the first-level wheel set includes a first-level large driving wheel and a first-level small driving wheel, and the first-level large driving wheel and the first-level small driving wheel are coaxially driven;

The secondary wheel set includes a secondary large driving wheel and a secondary small driving wheel, and the secondary large driving wheel and the secondary small driving wheel are coaxially driven;

The primary small driving wheel meshes with the secondary large driving wheel;

The radial cross-sectional diameter of the first-stage small moving wheel is smaller than the radial cross-sectional diameter of the second-stage large moving wheel.

Preferably, the driving member is specifically a motor, and the output shaft of the driving member is provided with a first transmission wheel, and the diameter of the radial section of the first transmission wheel is smaller than the first-stage large driving wheel; the first transmission wheel is synchronized through The belt is connected with the transmission of the primary driving wheel.

Preferably, the radial cross-sectional diameter of the first-stage large moving wheel is larger than that of the first-stage small moving wheel, and the radial cross-sectional diameter of the second-stage large moving wheel is larger than that of the second-stage small moving wheel.

Preferably, the transmission device further includes a second transmission wheel coaxially transmitted with the saw blade, and the second transmission wheel meshes with the secondary small driving wheel.

Preferably, it also includes a fixing device, the fixing device includes a pressing block for pressing the object to be sawed, and a lifting member for controlling the lifting of the pressing block;

It also includes a fixing frame for fixing the lifting part, one end of the fixing frame is connected with the lifting part, and the other end of the fixing frame is connected with the shell.

Beneficial effects of the present invention: the sawing direction of the sawing machine is changed from bottom to top, so that the sawing device and the transmission device can be arranged under the sawing machine, which greatly reduces the waste of space and achieves the effect of saving space .

Description of drawings

Fig. 1 is the overall structure diagram of the present invention.

Fig. 2 is the internal structure diagram of the present invention.

Fig. 3 is a three-dimensional structure diagram of the transmission device of the present invention.

Fig. 4 is a three-dimensional structure diagram of the fixing device of the present invention.

Fig. 5 is a three-dimensional structure diagram of the present invention with the casing hidden.

Fig. 6 is a three-dimensional structure diagram of another perspective with the casing hidden in the present invention.

Reference numerals are: 1—sawing device, 11—saw blade, 12—expandable member, 13—fixed member, 131—third bearing, 132—first bearing, 133—second bearing, 14—dust removal brush, 15—collection box, 16—baffle plate, 161—first plate, 162—second plate, 17—support, 2—transmission device, 21—first-level wheel set, 211—first-level large driving wheel, 212—first-level small Driving wheel, 22—secondary wheel set, 221—secondary large moving wheel, 222—secondary small moving wheel, 23—second transmission wheel, 3—driver, 31—first transmission wheel, 4—housing, 41—through slot , 42—maintenance door, 43—loading platform, 5—fixing device, 51—briquetting block, 52—lifting member, 53—fixed frame.

detailed description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, a sawing machine with a sawing direction from bottom to top includes a housing 4, a sawing device 1, a transmission device 2 and a driving member 3; the top of the housing 4 is provided with a loading platform 43, The load is provided with a through groove 41; the sawing device 1 includes a saw blade 11 and a telescopic member 12, the saw blade 11 is arranged inside the casing 4 and the sawing direction is from bottom to top, and the telescopic member 12 is used The driving saw blade 11 protrudes from the through slot 41 ; the driving member 3 drives the saw blade 11 to rotate through the transmission device 2 .

The existing sawing machine saws from top to bottom, so that the sawing device 1 and the transmission device 2 must be placed on the upper end of the sawing machine, and the lower end of the sawing machine is hollow, and the overall structure wastes a lot of space. The sawing direction of the sawing machine is changed from bottom to top, so that the sawing device 1 and the transmission device 2 can be arranged below the sawing machine, which greatly reduces the occupation of the upper space and has the effect of saving space.

The telescopic member 12 is specifically an oil cylinder. The oil cylinder is arranged obliquely and one end provided with the piston rod faces upward. The piston rod of the oil cylinder is connected with the saw blade 11, and the expansion and contraction of the piston rod drives the expansion and contraction of the saw blade 11. The telescopic stroke required for the saw blade 11 is short. The structure of the oil cylinder is simple, which can make the sawing device 1 compact in structure and occupy a small space.

When not sawing, the saw blade 11 is accommodated inside the casing 4 . When sawing, the telescopic member 12 drives the saw blade 11 to protrude from the through slot 41 to the loading platform 43 . After sawing is completed, the telescopic member 12 drives the saw blade 11 to be stored into the casing 4 from the through slot 41 . The present invention effectively prevents the user from accidentally touching the saw blade 11 and causing injury, and at the same time protects the saw blade 11 to prevent the saw blade 11 from colliding with foreign objects and causing the saw blade 11 to break.

The housing 4 is provided with a maintenance door 42 . The saw blade 11 is a vulnerable part and needs to be replaced frequently. The casing 4 is provided with a maintenance door 42 on the side where the saw blade 11 is located, which is convenient for opening the maintenance door 42 to directly replace the saw blade 11 without dismantling the entire casing 4, making the replacement process simple and fast.

As shown in Fig. 2, Fig. 3, Fig. 5 and Fig. 6, the sawing device 1 also includes a bracket 17 and a fixing part 13; the fixing part 13 is used to fix the saw blade 11 and the transmission device 2, and the bracket 17 One end is hinged with the fixing part 13, and the other end is connected with the driving part 3; the telescopic part 12 drives the saw blade 11 and the transmission device 2 to expand and contract through the fixing part 13.

The saw blade 11 and the transmission device 2 are driven by meshing. In order to ensure the stable engagement between the saw blade 11 and the transmission device 2, the transmission device 2 must expand and contract with the saw blade 11, and the saw blade 11 and the transmission device 2 cannot move relative to each other. . Using a fixing piece 13 to fix the saw blade 11 and the transmission device 2 at the same time can ensure that the saw blade 11 and the transmission device 2 will not move relative to each other. Utilizing the telescopic piece 12 to drive the fixing piece 13 to move, the effect of making the saw blade 11 and the transmission device 2 move in the same direction at the same time can be achieved.

The fixing part 13 is box-shaped, and the transmission device 2 is arranged inside the fixing part 13 . There are many gear parts in the transmission device 2 , and dust ingress will accelerate the wear of the gears, and also cause the gears to mesh unstable and cause the saw blade 11 to vibrate. Setting the box-shaped fixing piece 13 can prevent dust from entering the transmission device 2 , so that the transmission device 2 is effective.

The telescopic member 12 is inclined relative to the horizontal plane, so that the saw blade 11 can perform sawing obliquely rather than vertically. The telescopic part 12 is tilted, and the load-bearing capacity of the fixing part 13 is weakened. Setting the bracket 17 can help the telescopic part 12 to bear the load, effectively making the overall structure more stable and preventing the sawing device 1 from falling apart. The bracket 17 is fixed on the upper end of the driving part 3, and the fixing part 13 is arranged on the upper end of the bracket 17 to achieve the effect of saving lateral space.

The fixing member 13 is provided with a third bearing 131 . If the saw blade 11 is directly connected to the fixing member 13, the saw blade 11 cannot rotate or the transmission efficiency is very low due to excessive friction. The saw blade 11 is connected to the fixing member 13 through the third bearing 131 , which can effectively reduce friction and improve the transmission efficiency of the transmission device 2 to the saw blade 11 .

As shown in FIG. 2 , FIG. 4 and FIG. 5 , the sawing device 1 further includes a dust removal brush 14 for removing sawing dust from the saw blade 11 . The sawing device 1 further includes a baffle 16 and a collection box 15 , the baffle 16 is used to prevent sawing chips from the saw blade 11 from flying and guide the chips into the collection box 15 . After sawing by the saw blade 11 , debris will be left on the blade edge, and these debris will accelerate the wear of the saw blade 11 and easily cause the saw blade 11 to break. A dust removal brush 14 is arranged at the blade edge of the saw blade 11, and the saw blade 11 is cleaned while sawing, so as to reduce wear and tear. During the sawing process of the saw blade 11, debris will fly out, resulting in an untidy production environment. Setting the baffle plate 16 can effectively prevent debris from flying, and allow the debris to concentrate into the collection box 15 for cleaning.

As shown in FIG. 2 and FIG. 4 , the baffle plate 16 includes a first block 161 and a second block 162 , and the first block 161 and the second block 162 are detachably connected. The saw blade 11 is a vulnerable part and needs to be replaced frequently. The first block 161 and the second block 162 are detachably connected. When replacing the saw blade 11, only the second block 162 needs to be removed without disassembling the whole block, so that the replacement process is simple and quick.

As shown in FIG. 3 , the transmission device 2 includes a primary wheel set 21 and a secondary wheel set 22 , and the driving member 3 is in transmission connection with the saw blade 11 through the primary wheel set 21 and the secondary wheel set 22 in sequence.

The driving member 3 is specifically a motor. The saw blade 11 has a relatively large inertia when performing heavy sawing. If the saw blade 11 is directly connected to the output shaft of the motor, the inertia of the saw blade 11 will cause an excessive effect on the output shaft when the sawing is stopped, resulting in damage to the motor. The saw blade 11 is connected with the motor by using the primary wheel set 21 and the secondary wheel set 22, which can effectively prevent the inertial force of the saw blade 11 from damaging the output shaft of the motor, effectively protect the motor, and prolong the service life of the motor.

As shown in Figure 3, the first-level wheel set 21 includes a first-level large moving wheel 211 and a first-level small moving wheel 212, and the first-level large moving wheel 211 and the first-level small moving wheel 212 are coaxially driven; the second-level wheel set 22 Including a secondary large driving wheel 221 and a secondary small driving wheel 222, the secondary large driving wheel 221 and the secondary small driving wheel 222 are coaxially driven; the primary small driving wheel 212 meshes with the secondary large driving wheel 221; The radial cross-sectional diameter of the first-stage small moving wheel 212 is smaller than the radial cross-sectional diameter of the second-stage large moving wheel 221 .

The rotational speed of the driving member 3 is relatively high, but since the radial cross-sectional diameter of the first-stage small moving wheel 212 in the first-stage wheel set 21 is smaller than the second-stage large moving wheel 221 in the second-stage wheel set 22, according to the same linear velocity when the moving wheel The principle that the larger the diameter is, the smaller the rotation speed makes the rotation speed of the secondary wheel set 22 less than that of the driving member 3 , and then the rotation speed of the saw blade 11 connected to the secondary wheel set 22 is lower than the rotation speed of the driving member 3 . The saw blade 11 obtains a suitable rotating speed for sawing. It not only increases the torsion force of the saw blade 11 so that the saw blade 11 can perform heavy cutting, but also reduces the vibration of the saw blade 11 and improves the cutting precision.

Using two wheel sets to reduce the rotational speed is enough to meet the demand of the saw blade 11 on the rotational speed. The first-stage small driving wheel 212 directly meshes with the second-stage large driving wheel 221 to avoid increased energy loss due to multi-stage transmission, improve transmission efficiency, and reduce output power loss.

The fixing piece 13 fixes the transmission device 2 , specifically, one fixing piece 13 fixes the primary wheel set 21 and the secondary wheel set 22 at the same time. In order to ensure the stable meshing between the first-stage small moving wheel 212 and the second-stage large moving wheel 221 , there should be no relative movement between the first-stage wheel set 21 and the second-stage wheel set 22 . A fixing member 13 is used to simultaneously fix the primary wheel set 21 and the secondary wheel set 22, so that the overall structure is more stable and there is no relative movement between the wheel sets. The fixing part 13 is provided with a first bearing 132 and a second bearing 133 . The primary wheel set 21 is connected to the fixing member 13 through the first bearing 132 , and the secondary wheel set 22 is connected to the fixing member 13 through the second bearing 133 . If the wheel set is directly connected with the fixing member 13, the wheel set cannot rotate or the transmission efficiency is very low due to excessive friction. The wheel set is connected with the fixing member 13 through the bearing, which can effectively reduce friction and improve the transmission efficiency of the transmission device 2 .

As shown in Figure 3, the driving member 3 is specifically a motor, and the output shaft of the driving member 3 is provided with a first transmission wheel 31, and the radial cross-sectional diameter of the first transmission wheel 31 is smaller than the first-stage large driving wheel 211; The first transmission wheel 31 is in transmission connection with the primary driving wheel 211 through a synchronous belt.

Specifically, both the primary large driving wheel 211 and the first transmission wheel 31 are belt pulleys, and the primary primary large driving wheel 211 and the first transmission wheel 31 are driven by a synchronous belt (not shown in the figure). The restriction on the placement position of the motor can be reduced through the belt drive, so that the motor can be placed in a reasonable position and the space occupied by the overall construction can be reduced. Make the radial section diameter of the first transmission wheel 31 smaller than the first-stage large driving wheel 211, so that the rotational speed transmitted by the first-stage wheel set 21 is smaller than that of the motor, and the reduction of the rotational speed is realized in the link of the motor to the first-stage wheel set 21. The transmission ratio of the transmission device 2 is increased.

As shown in FIG. 3 , the diameter of the radial section of the first-stage large moving wheel 211 is larger than that of the first-stage small moving wheel 212 , and the diameter of the radial section of the second-stage large moving wheel 221 is larger than that of the second-stage small moving wheel 222 .

In the case of the same rotational speed, the smaller the diameter of the radial section of the moving wheel, the smaller the linear velocity. According to this principle, the diameter of the radial section of the large driving wheel is larger than that of the small driving wheel in the wheel set, which can further increase the transmission ratio of the transmission device 2 .

As shown in FIG. 3 , the transmission device 2 further includes a second transmission wheel 23 coaxially transmitted with the saw blade 11 , and the second transmission wheel 23 meshes with the secondary small driving wheel 222 .

The diameter of the radial section of the second transmission wheel 23 is the same as that of the secondary small driving wheel 222 . When it is required that the rotation direction of the saw blade 11 is opposite to that of the secondary wheel set 22 , the second transmission wheel 23 can effectively change the rotation direction.

The primary small driving wheel 212 , the secondary large driving wheel 221 , the secondary small driving wheel 222 and the second transmission wheel 23 are all helical gears. The vibration of the saw blade 11 will affect the machining accuracy and accelerate the wear of the saw blade 11 . The helical gears have a high meshing degree of overlap, which can make the transmission between the wheel sets and between the wheel sets and the saw blade 11 more stable, effectively reduce the vibration of the saw blade 11, and improve the machining accuracy.

As shown in Figure 1, Figure 2 and Figure 3, it also includes a fixing device 5, which includes a pressing block 51 for pressing the object to be sawed, and a lifting member 52 for controlling the lifting of the pressing block 51; It also includes a fixing frame 53 for fixing the lifting member 52 , one end of the fixing frame 53 is connected with the lifting member 52 , and the other end is connected with the casing 4 .

The lifting member 52 is specifically a cylinder, and the piston rod of the cylinder is connected with the pressure block 51, and the lifting of the pressure block is controlled by the expansion and contraction of the piston rod. The contact area between the fixing device 5 and the object to be sawed is increased by the pressing block 51 to better fix the object to be sawed. The saw blade 11 saws upwards and fixes the object to be sawed by applying pressure. The structure is simple and the fixing effect is good.

The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field , without departing from the scope of the technical solution of the present invention, when using the technical content disclosed above to make some changes or modifications to equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, the technology of the present invention refers to the above Any simple modifications, equivalent changes and modifications made in the embodiments all belong to the scope of the technical solution of the present invention.

Claims (10)

1. A kind of 1. bottom-up sawing machine in sawing direction, it is characterised in that：Including shell (4), saw cutting device (1), transmission dress Put (2) and actuator (3)；

   The top of shell (4) is provided with objective table (43), and the loading is provided with groove (41)；

   The saw cutting device (1) includes saw blade (11) and extensible member (12), the saw blade (11) be arranged on the inside of shell (4) and Sawing direction is bottom-up, and the extensible member (12) is used to drive saw blade (11) to stretch out from the groove (41)；

   The actuator (3) drives saw blade (11) to rotate by the transmission device (2).
2. A kind of 2. bottom-up sawing machine in sawing direction according to claim 1, it is characterised in that：The saw cutting device (1) support (17) and fixture (13) are also included；

   The fixture (13) is used to fix saw blade (11) and transmission device (2), described support (17) one end and fixture (13) it is hinged, the other end is connected with actuator (3)；

   Described extensible member (12) one end is be hinged with fixture (13), and the other end is fixed on shell (4).
3. A kind of 3. bottom-up sawing machine in sawing direction according to claim 1, it is characterised in that：Saw cutting device (1) Also including debris removal brush (14), baffle plate (16) and collecting box (15), debris removal brush (14) is used for the sawing chip for removing saw blade (11), Baffle plate (16) is used to prevent the sawing chip of saw blade (11) from dispersing and guide chip to enter collecting box (15).
4. A kind of 4. bottom-up sawing machine in sawing direction according to claim 3, it is characterised in that：Baffle plate (16) includes First plate (161) and the Second Board (162), the first plate (161) and the Second Board (162) are detachably connected.
5. A kind of 5. bottom-up sawing machine in sawing direction according to claim 1, it is characterised in that：The transmission device (2) a step cone group (21) and two step cone groups (22) are included, the actuator (3) passes sequentially through a step cone group (21) and two step cone groups (22) it is connected with saw blade (11).
6. A kind of 6. bottom-up sawing machine in sawing direction according to claim 5, it is characterised in that：The one step cone group (21) the big driving wheel of one-level (211) and the small driving wheel of one-level (212), the big driving wheel of one-level (211) and the small driving wheel of one-level are included (212) coaxial transmission；

   The two step cones group (22) includes the big driving wheel of two level (221) and the small driving wheel of two level (222), the big driving wheel of two level And the small driving wheel of two level (222) coaxial transmission (221)；

   The small driving wheel of one-level (212) is engaged with the big driving wheel of the two level (221)；

   The radial section diameter of the small driving wheel of one-level (212) is less than the radial section diameter of the big driving wheel of the two level (221).
7. A kind of 7. bottom-up sawing machine in sawing direction according to claim 6, it is characterised in that：Actuator (3) has Body is motor, and the output shaft of the actuator (3) is provided with the first drive (31), the radial section of first drive (31) Diameter is less than the big driving wheel of the one-level (211)；First drive (31) is driven by timing belt and the big driving wheel of one-level (211) Connection.
8. A kind of 8. bottom-up sawing machine in sawing direction according to claim 6, it is characterised in that：The one-level is dynamic greatly The radial section diameter of wheel (211) is more than the small driving wheel of one-level (212), and the radial section diameter of the big driving wheel of two level (221) is big In the small driving wheel of two level (222).
9. A kind of 9. bottom-up sawing machine in sawing direction according to claim 6, it is characterised in that：The transmission device (2) the second drive (23) with saw blade (11) coaxial transmission, second drive (23) and the small driving wheel of two level are also included (222) engage.
10. A kind of 10. bottom-up sawing machine in sawing direction according to claim 1, it is characterised in that：Also include fixing Device (5), the fixing device (5) include briquetting (51), and the lifters (52) for controlling briquetting (51) to lift；

    Also including being used for the fixed mount (53) for fixing lifters (52), described fixed mount (53) one end is connected with lifters (52), The other end is connected with shell (4).