A high-safety band saw with a multi-dimensional adjustment mechanism

Abstract

The present invention discloses a high-safety band saw with a multi-dimensional adjustment mechanism, comprising a body and a protective door panel hinged to the body, wherein a protective door panel slow-opening device is provided between the free end of the protective door panel and the body; and a band saw multi-dimensional adjustment mechanism is provided on the body. In the present application, a pulley adjustment handle is provided to drive a pulley adjustment block, a swing adjustment block, and a pulley for vertical adjustment. In addition, the length of the extended set screws on the left and right sides is adjusted so that the pulley can swing in the left and right directions when it abuts against the strip boss. Finally, the screw of the adjustment handle on the rear side of the body abuts against the swing adjustment block, thereby driving the pulley to swing in the vertical direction, thereby achieving multi-dimensional adjustment of the entire pulley. In addition, the slow-opening device can ensure that the pulley has stopped rotating when opening, avoiding danger.

Description

Technical Field

[0001] The invention relates to a band saw, in particular to a high-safety band saw with a multi-dimensional adjustment mechanism. Background Art

[0002] At present, the band saws on the market cannot be adjusted in multiple dimensions. If the installation or manufacturing of the pulley causes an angular offset, it will be damaged if it is continued to be used after the offset. However, if correction is required, it is generally necessary to disassemble it, correct the offset, and then install it again, which is time-consuming and labor-intensive. To address this problem, the present application provides a multi-dimensional adjustment mechanism for the pulley that can be quickly adjusted. In addition, the existing band saws are protected by providing a protective cover, but there are still safety risks in the following two situations: 1. When the power tool is started, the protective cover is not closed, which can easily cause injury; 2. After the power tool is turned off, it still has a high speed due to inertia. At this time, if the protective cover is opened too early, it can also easily cause danger. To address the above two problems, the present application provides a protective cover slow-opening device. At startup, the microswitch needs to detect the pressure of the protective door panel being completely closed before the motor can be controlled to work. After the switch is turned off, the protective door panel can be opened by rotating the adjusting screw until the folding plate of the door lock pressure plate completely slides out of the limit hole or opening. During this process, the power tool has stopped rotating, thereby achieving protection for the user. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems mentioned in the background technology and to propose a high-safety band saw with a multi-dimensional adjustment mechanism.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The cam is fixed to the frame and is secured to the machine base with a secure, secure, and reliable camshaft assembly, and the camshaft assembly is secured to the frame and is easily detachable. The wheel adjusting handle compresses and releases the pulley adjusting spring, and the bottom end of the pulley adjusting spring rests on the pulley adjusting block, wherein the hole wall of the waist-shaped hole is provided with an annular step, and the nut of the step screw rests on the annular step; the left and right swing mechanism includes adjusting screw holes arranged on the left and right sides of the pulley adjusting block and adjusting screws arranged in the adjusting screw holes, and the protrusions on both sides of the slide rail frame form two vertically extending strip bosses, and the adjusting screws on both sides are respectively opposite to the front and rear positions of the two strip bosses; the up and down swing mechanism includes a swing adjustment block and an up and down swing adjustment handle, the swing adjustment block is rotatably connected to the pulley adjusting block, and the screw of the up and down swing adjustment handle passes through the body from the rear side of the machine body and extends to the rear side of the swing adjustment block; the pulley is detachably connected to the swing adjustment block.

[0006] Preferably, a step is provided on the screw rod of the pulley adjustment handle, and a pulley adjustment spring is sleeved under the step; the top end of the pulley adjustment spring abuts against the top of the machine body, and the bottom end thereof abuts against the top of the pulley adjustment block.

[0007] Preferably, the machine body includes an annular frame and a rear panel arranged on the rear side of the annular frame, and the slide rail frame is arranged on the front end surface of the rear panel.

[0008] Preferably, the left and right sides of the slide rail groove of the slide rail frame are stepped structures, and the rear side of the pulley adjustment block extends inward to form a stepped slide, and the slide is attached to the stepped structures on the left and right sides of the slide rail groove.

[0009] Preferably, a bearing is provided in the middle of the pulley and is threadedly connected to the up and down swing adjustment block through a bearing screw and a shaft elastic retaining ring.

[0010] Preferably, the middle part of the bottom of the pulley adjustment block extends downward to form an extension platform, and a notch is provided on the swing adjustment block. The extension platform extends into the notch and the two are rotatably connected by elastic cylindrical pins arranged in the left and right directions.

[0011] Preferably, the protective door panel slow-opening device includes: a door lock plate, which is fixed to the protective door panel and has an opening or a limiting hole on it, the middle of the opening is wider than the two sides; an elastic member, which is arranged on the protective door panel and the other end of which abuts against the machine body and is in a compressed state when the protective door panel is closed; a micro switch, which is arranged on the machine body and connected to the motor, and abuts and triggers the micro switch when the protective door panel is fully closed; a door lock seat, which is a hollow structure and is fixed to the machine body by screws; a door lock pressure plate, which is located inside the door lock seat and is bent to form a folding plate, which can be extended into the middle of the opening or the limiting hole to limit the protective door panel; an adjusting screw, which extends into the door lock seat and is threadedly connected to the door lock pressure plate; wherein the door lock seat is provided with a cavity that matches the shape of the door lock pressure plate or a screw that fixes the door lock seat abuts against multiple side walls of the door lock pressure plate to limit it so that the adjusting screw can drive the door lock pressure plate to move along the axial direction of the adjusting screw.

[0012] Preferably, the elastic member is a door lock shrapnel, which is a V-shaped shrapnel with a screw hole in the middle, and is fixed to the protective door panel together with the door lock plate by screws.

[0013] Preferably, the outer portion of the adjusting screw is sleeved with a flat washer, and the inner portion is sleeved with a locking nut, which is used to limit the outward rotation of the adjusting screw.

[0014] Preferably, there are three screws for fixing the door lock seat, and there are recesses on the upper left corner and the lower left corner of the door lock pressure plate. Two of the three screws extend from the recesses, and the other one extends from the right side of the door lock pressure plate. All three screws are threadedly connected to the body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: in this application, the pulley adjustment handle is provided to drive the pulley adjustment block, the swing adjustment block and the pulley to be adjusted vertically. In addition, the length of the set screws on the left and right sides is adjusted so that it can swing in the left and right directions when it abuts against the strip boss. Finally, the screw of the adjustment handle on the rear side of the machine body abuts against the swing adjustment block, thereby driving the pulley to swing in the up and down directions, thereby realizing multi-dimensional adjustment of the entire pulley; in addition, the protective door panel slow-opening device requires the microswitch to detect the pressure of the protective door panel to be completely closed before it can control the motor to work. After turning off the switch, the protective door panel can be opened only after the adjusting screw is rotated until the folding plate of the door lock pressure plate completely slides out of the limit hole or opening. During this process, the power tool has stopped rotating, thereby achieving protection for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of the band saw's multi-dimensional adjustment mechanism.

[0017] Figure 2 This is the status diagram after the band saw multi-dimensional adjustment mechanism is installed.

[0018] Figure 3 This is an exploded view of the protective door panel slow-opening device.

[0019] Figure 4 This is the status diagram of the protective door panel slow opening device after installation.

[0020] In the figure: 1—elastic retaining ring, 2—bearing screw, 3—bearing, 4—pulley, 5—machine body, 6—swing locking knob, 7—hexagonal nut, 8—adjusting handle, 9—swing adjusting block, 10—elastic cylindrical pin, 11—pulley adjusting handle, 12—pulley adjusting spring, 13—pulley adjusting block, 14—flat washer, 15—hexagon socket step screw, 16—hexagon socket flat-end set screw; 01A—protective door panel, 02A—door lock plate, 03A—door lock spring, 04A—screw, 05A—micro switch, 07A—door lock pressure plate, 08A—locking nut, 09A—door lock seat, 10A—flat washer, 11A—screw, 12A—flat washer, 13A—adjusting screw. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example

[0023] Reference Figure 1-Figure 2, a high-safety band saw with a multi-dimensional adjustment mechanism, comprising a body and a protective door panel 01A hinged on the body, the free end of the protective door panel 01A and the body 5 are provided with a protective door panel 01A slow-opening device; a band saw multi-dimensional adjustment mechanism is provided on the body 5; wherein the band saw multi-dimensional adjustment mechanism comprises a slide rail frame with a vertical slide rail arranged on the body 5, the slide rail of the slide rail frame is provided with a mounting hole, and also includes: a vertical adjustment mechanism, which includes a pulley adjustment handle 11 and a pulley adjustment block 13 arranged on the slide rail frame and capable of vertically sliding along the slide rail frame, a vertical waist-shaped hole is provided in the middle of the pulley adjustment block 13 and is installed at the mounting hole by a step screw 15, the pulley adjustment handle 11 is threadedly connected to the body 5 and extends vertically downward to extend into the circular hole opened on the pulley adjustment block 13, and the pulley adjustment The joint handle 11 is provided with a pulley adjustment spring 12 which is compressed and released by rotating the pulley adjustment handle 11. The bottom end of the pulley adjustment spring 12 abuts against the pulley adjustment block 13. The left and right swing mechanism includes adjustment screw holes provided on the left and right sides of the pulley adjustment block 13 and adjustment screws 16 provided in the adjustment screw holes. The two sides of the slide rail frame are raised to form two vertically extending strip bosses. The adjustment screws 16 on both sides are respectively opposite to the front and rear positions of the two strip bosses. The up and down swing mechanism includes a swing adjustment block 9 and an up and down swing adjustment handle 8. The swing adjustment block 9 is rotatably connected to the pulley adjustment block 13. The screw of the up and down swing adjustment handle 8 passes through the body 5 from the rear side and extends to the rear side of the swing adjustment block 9. The pulley 4 is detachably connected to the swing adjustment block 9. Preferably, the step screw is a hexagon socket step screw 15 and the adjustment screw is a hexagon socket flat-end set screw 16.

[0024] Preferably, a step is provided on the screw of the pulley adjustment handle 11, and a pulley adjustment spring 12 is sleeved under the step; the top end of the pulley adjustment spring 12 abuts against the top of the machine body 5, and the bottom end thereof abuts against the top of the pulley adjustment block 13.

[0025] Preferably, the body 5 includes an annular frame and a rear panel arranged on the rear side of the annular frame, and the slide rail frame is arranged on the front end surface of the rear panel.

[0026] Preferably, the left and right sides of the slide rail groove of the slide rail frame are stepped structures, and the rear side of the pulley adjustment block 13 extends inward to form a stepped slide, which is attached to the stepped structures on the left and right sides of the slide rail groove.

[0027] Preferably, a bearing 3 is provided in the middle of the pulley 4 and is threadedly connected to the up and down swing adjustment block 9 through a bearing screw 2 and a shaft elastic retaining ring 1.

[0028] Preferably, the hole wall of the waist-shaped hole is provided with an annular step, and the nut of the step screw 15 rests on the annular step.

[0029] Preferably, the middle part of the bottom of the pulley adjustment block 13 extends downward to form an extension platform, and a notch is provided on the swing adjustment block 9. The extension platform extends into the notch and the two are rotatably connected by elastic cylindrical pins 10 arranged in the left and right directions.

[0030] Preferably, a hexagonal nut 6 and a swing locking knob 7 are sequentially sleeved on the screw of the adjusting handle 8, and the bearing screw 2 can be extended to the rear of the machine body 5 and threadedly connected to the swing locking knob 7. At this time, the pulley is locked in the up and down directions, and the screw of the adjusting handle 8 cannot drive the pulley to swing up and down.

[0031] refer to Figure 3-Figure 4 The protective cover slow-opening device includes: a door lock piece 02A, which is fixed to the protective door panel 01A and is provided with an opening or a limiting hole, the middle of the opening is wider than the two sides; an elastic member, which is provided on the protective door panel 01A and when the protective door panel 01A is closed, the other end abuts against the machine body 5 and is in a compressed state; a micro switch 05A, which is provided on the machine body 5 and connected to the motor, abuts against and touches the micro switch 05A when the protective door panel 01A is fully closed; a door lock seat 09A, which is a hollow structure, is fixed to the machine body 5 by screws; a door lock pressure plate 07A, which is located Inside the door lock base 09A, a bent edge plate is formed. This edge plate can be inserted into the center of the opening or into the limiting hole to limit the position of the protective door panel 01A. An adjusting screw 13A extends into the door lock base 09A and is threadedly connected to the door lock pressure plate 07A. The door lock base 09A has a cavity that matches the shape of the door lock pressure plate 07A, or a screw that fixes the door lock base 09A against the side walls of the door lock pressure plate 07A to limit its position, allowing the adjusting screw 13A to drive the door lock pressure plate 07A along its axial movement. The adjusting screw 13A is also equipped with a knob.

[0032] Preferably, the elastic member is a door lock shrapnel 03A, which is a V-shaped shrapnel 03A and has a screw hole in the middle thereof. It is fixed to the protective door panel 01A together with the door lock piece 02A by screws.

[0033] Preferably, the outer portion of the adjusting screw 13A is sleeved with a flat washer, and the inner portion is sleeved with a locking nut 08A, which is used to limit the outward rotation of the adjusting screw 13A.

[0034] Preferably, three screws 11A are provided to secure the door lock base 09A. Notches are provided at the upper left and lower left corners of the door lock pressure plate 07A. Two of the three screws 11A extend through the notches, and the other extends through the right side of the door lock pressure plate 07A. All three screws 11A are threadedly connected to the housing 5. Flat washers 10A are also provided on the outer portions of the screws 11A securing the door lock base 09A.

[0035] In addition, the band saw described in the present application is a vertical band saw.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-safety band saw with a multi-dimensional adjustment mechanism, comprising a body and a protective door panel hinged to the body, characterized in that: The free end of the protective door panel and the machine body are provided with a protective door panel slow-opening device; the machine body is provided with a band saw multi-dimensional adjustment mechanism; the band saw multi-dimensional adjustment mechanism includes a slide rail frame with a vertical slide rail arranged on the machine body, and the slide rail of the slide rail frame is provided with a mounting hole. The band saw multi-dimensional adjustment mechanism also includes: a vertical adjustment mechanism, which includes a pulley adjustment handle and a pulley adjustment block arranged on the slide rail frame and capable of vertically sliding along the slide rail frame. A vertical waist-shaped hole is provided in the middle of the pulley adjustment block and is installed at the mounting hole by a step screw. The pulley adjustment handle is threadedly connected to the machine body and extends vertically downward to extend into the circular hole opened on the pulley adjustment block. The upper sleeve is provided with a pulley adjusting spring which is compressed and loosened by rotating the pulley adjusting handle. The bottom end of the pulley adjusting spring rests on the pulley adjusting block. The hole wall of the waist-shaped hole is provided with an annular step, and the nut of the step screw rests on the annular step; the left and right swing mechanism includes adjusting screw holes provided on the left and right sides of the pulley adjusting block and adjusting screws provided in the adjusting screw holes. The two sides of the slide rail frame are raised to form two vertically extending strip bosses, and the adjusting screws on both sides are respectively opposite to the front and rear positions of the two strip bosses; the up and down swing mechanism includes a swing adjustment block and an up and down swing adjustment handle. The swing adjustment block is connected to the pulley adjusting block for rotation The screw of the up and down swing adjustment handle passes through the machine body from the rear side of the machine body and extends to the rear side of the swing adjustment block; the pulley is detachably connected to the swing adjustment block, and the middle part of the bottom of the pulley adjustment block extends downward to form an extension platform. The swing adjustment block is provided with a notch, and the extension platform extends into the notch and the two are rotatably connected by elastic cylindrical pins arranged in the left and right directions. The protective door panel slow opening device: the door lock piece is fixed to the protective door panel, and is provided with an opening or a limiting hole on it, and the middle of the opening is wider than the two sides; the elastic member is provided on the protective door panel and the other end is against the machine body and is in a compressed state when the protective door panel is closed; the micro switch, It is arranged on the machine body and connected to the motor, and the protective door panel abuts and touches the micro switch when it is fully closed; the door lock seat is a hollow structure, which is fixed to the machine body by screws; the door lock pressure plate is located inside the door lock seat, and is bent to form a folding plate, which can be extended into the middle of the opening or the limiting hole to limit the protective door panel; the adjusting screw is extended into the door lock seat and is threadedly connected to the door lock pressure plate; the door lock seat is provided with a cavity that matches the shape of the door lock pressure plate or the screw for fixing the door lock seat abuts against multiple side walls of the door lock pressure plate to limit it so that the adjusting screw can drive the door lock pressure plate to move along the axial direction of the adjusting screw.

2. A high-safety band saw with a multi-dimensional adjustment mechanism according to claim 1, characterized in that: A step is provided on the screw rod of the pulley adjustment handle, and a pulley adjustment spring is sleeved under the step; the top end of the pulley adjustment spring abuts against the top of the machine body, and the bottom end thereof abuts against the top of the pulley adjustment block.

3. The high-safety band saw with a multi-dimensional adjustment mechanism according to claim 1, characterized in that: The machine body comprises an annular frame and a rear panel arranged on the rear side of the annular frame, and the slide rail frame is arranged on the front end surface of the rear panel.

4. A high-safety band saw with a multi-dimensional adjustment mechanism according to claim 1 or 3, characterized in that: The left and right sides of the slide rail groove of the slide rail frame are stepped structures, and the rear side of the pulley adjustment block extends inward to form a stepped slide, and the slide is attached to the stepped structures on the left and right sides of the slide rail groove.

5. The high-safety band saw with a multi-dimensional adjustment mechanism according to claim 1, characterized in that: A bearing is provided in the middle of the pulley and is threadedly connected to the up and down swing regulating block through a bearing screw and a shaft elastic retaining ring.

6. The high-safety band saw with a multi-dimensional adjustment mechanism according to claim 1, characterized in that: The elastic member is a door lock shrapnel, which is a V-shaped shrapnel with a screw hole in the middle. It is fixed to the protective door panel together with the door lock piece by screws.

7. The high-safety band saw with a multi-dimensional adjustment mechanism according to claim 1, characterized in that: The outer part of the adjusting screw is sleeved with a flat washer, and the inner part is sleeved with a locking nut, which is used to limit the outward rotation of the adjusting screw.

8. The high-safety band saw with a multi-dimensional adjustment mechanism according to claim 1, characterized in that: There are three screws for fixing the door lock seat. There are notches on the upper left corner and the lower left corner of the door lock pressure plate. Two of the three screws extend from the notches, and the other one extends from the right side of the door lock pressure plate. All three screws are connected to the body thread.

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