Cut-off machine convenient to adjust

Abstract

The utility model belongs to the field of cut-off machines, and particularly relates to a cut-off machine convenient to adjust, which comprises a base, a crank is mounted on the right portion of the upper end of the base through a bearing, a swing arm is mounted on the outer side of a connecting shaft at the upper end of the crank through a bearing, and a reciprocating rod is hinged to the left portion of the outer side of the swing arm. The left end of the reciprocating rod makes contact with a cut-off tool, the reciprocating rod is provided with a rapid replacement mechanism, the left end of the crank is fixedly connected with a balancing weight, a motor is fixedly installed in the lower end of the base, and the left portion of the lower end of the base is fixedly connected with two symmetrically-distributed fixing frames. The screw, the threaded frame, the cut-off frame and other structures are additionally arranged on the base, the cut-off frame can be driven to move through threaded fit between the screw and the threaded frame in the using process, the cut-off range can be adjusted in the moving process of the cut-off frame, and therefore the cut-off range of the device can be adjusted more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to a cutting machine which is easy to adjust. Background Art

[0002] In the process of construction engineering, it is necessary to cut the engineering materials by a cutting machine. According to the patent authorization announcement number: CN216441746U, a cutting machine for construction engineering is proposed. The utility model discloses a cutting machine for construction engineering, which relates to the technical field of construction engineering, including a bottom plate, a rack is slidably connected to the lower end of the inner surface of the bottom plate, a gear is meshed on the upper surface of the rack, a movable plate is meshed on the upper surface of the gear, a spring is fixedly connected to the upper surface of the bottom plate, a limit rod is fixedly connected to the upper end of the spring, a fixed rod is fixedly connected to the upper surface of the bottom plate, a magnet is fixedly connected to the right end of the outer surface of the fixed rod, a cutter shell is hinged on the upper surface of the bottom plate, a magnet is fixedly connected to the left surface of the cutter shell, and a staggered cutting device is arranged at the lower end of the cutter shell. The cutting machine adopts a staggered cutting device. When the motor rotates, it drives the rotating rod to rotate and makes the cutter reciprocate up and down through transmission. Compared with the general pressing cutting method, this cutting method effectively improves the cutting efficiency and reduces the burrs of the cross section.

[0003] However, the distance between the cutter and the cutter holder in the prior art is relatively fixed during use, which makes it difficult to adjust the cutting range. In addition, in order to ensure the sharpness of the cutter blade during cutting, the cutter blade needs to be regularly polished. The cutter thread installed on the reciprocating rod by bolts is prone to deformation, which makes it difficult to disassemble the cutter. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a cutting machine which is easy to adjust, thereby solving the problems that the cutting range is inconvenient to adjust and the cutting knife is inconvenient to disassemble.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting machine that is easy to adjust, comprising a base, a crank is installed on the right upper end of the base through a bearing, a swing arm is installed on the outer side of the connecting shaft at the upper end of the crank through a bearing, a reciprocating rod is hinged on the outer left part of the swing arm, the left end of the reciprocating rod contacts the cutting knife, a quick-changing mechanism is provided on the reciprocating rod, a counterweight is fixedly connected to the left end of the crank, a motor is fixedly installed inside the lower end of the base, two symmetrically distributed fixing frames are fixedly connected to the left lower end of the base, a screw is installed inside the two fixing frames through a bearing, a threaded frame is connected to the outer side of the screw through a thread, the upper end of the threaded frame is fixedly connected to the cutting frame, and the left end of the screw is fixedly connected to a hand wheel.

[0006] Preferably, a guide frame is fixedly connected to the upper end of the base, and the guide frame is slidably connected to the reciprocating rod, and the guide frame can guide the movement of the reciprocating rod.

[0007] Preferably, the upper end of the output shaft of the motor is fixedly connected to the lower end of the connecting shaft of the crank, and a plurality of evenly distributed support bars are fixedly connected to the outer side of the connecting shaft of the crank, and the support bars are in contact with the base, and the support bars can provide auxiliary support to the connecting shaft of the crank.

[0008] Preferably, the cutting frame is slidably connected to the base, and the threaded frame is slidably connected to the base, and the threaded frame can drive the cutting frame to move.

[0009] Preferably, the quick-change mechanism includes a connecting column, the right end of the cutting knife is fixedly connected to the connecting column, the inside of the reciprocating rod is slidably connected to a pull rod, the lower end of the pull rod is fixedly connected to a limiting column, the upper end of the pull rod is fixedly connected to a handle, a spring is provided on the outside of the pull rod, the handle is in contact with the reciprocating rod, and the handle can drive the limiting column to move through the pull rod.

[0010] Preferably, the connecting column is slidably connected to the reciprocating rod, the limiting column is slidably connected to the connecting column, the connecting column is slidably connected to the reciprocating rod, one end of the spring is fixedly connected to the reciprocating rod, and the other end of the spring is fixedly connected to the limiting column, and the spring can drive the limiting column to automatically reset through elastic force.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model adds structures such as a screw, a threaded frame and a cutting frame on the base. During use, the cutting frame can be driven to move by the threaded cooperation between the screw and the threaded frame. The cutting range can be adjusted during the movement of the cutting frame, so that the cutting range of the device can be more easily adjusted.

[0013] 2. The utility model adds structures such as a pull rod, a handle and a limit column to the reciprocating rod. During use, the limit column can be driven by the elastic force of the spring to slide into the connecting column on the cutting knife to limit the cutting knife. When replacement is required, it is only necessary to separate the limit column from the connecting column, so that the cutting knife can be more convenient to disassemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;

[0016] Figure 3 The overall structure of the utility model is three-dimensional Figure 3 ;

[0017] Figure 4 For the utility model Figure 1 An enlarged front sectional view of the reciprocating rod.

[0018] In the figure: 1. base; 2. crank; 3. swing arm; 4. reciprocating rod; 5. cutting knife; 6. quick change mechanism; 7. guide frame; 8. support bar; 9. counterweight; 10. motor; 11. fixed frame; 12. screw; 13. threaded frame; 14. hand wheel; 15. cutting frame; 61. connecting column; 62. pull rod; 63. limit column; 64. spring; 65. handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 , Figure 3 A cutting machine that is easy to adjust comprises a base 1, a crank 2 is mounted on the right upper end of the base 1 through a bearing, a swing arm 3 is mounted on the outer side of a connecting shaft at the upper end of the crank 2 through a bearing, a reciprocating rod 4 is hinged on the outer left side of the swing arm 3, a cutting knife 5 is contacted at the left end of the reciprocating rod 4, a quick-changing mechanism 6 is arranged on the reciprocating rod 4, a counterweight 9 is fixedly connected to the left end of the crank 2, a motor 10 is fixedly mounted inside the lower end of the base 1, two symmetrically distributed fixing frames 11 are fixedly connected to the left lower end of the base 1, a screw 12 is mounted on the inner side of the two fixing frames 11 through a bearing, a threaded frame 13 is threadedly connected to the outer side of the screw 12, a cutting frame 15 is fixedly connected to the upper end of the threaded frame 13, and a hand wheel 14 is fixedly connected to the left end of the screw 12.

[0021] See also Figure 1 , Figure 2 , Figure 3The upper end of the base 1 is fixedly connected with a guide frame 7, which is slidably connected to the reciprocating rod 4. The guide frame 7 can guide the movement of the reciprocating rod 4. The upper end of the output shaft of the motor 10 is fixedly connected to the lower end of the connecting shaft of the crank 2. A plurality of evenly distributed support bars 8 are fixedly connected to the outer side of the connecting shaft of the crank 2. The support bars 8 are in contact with the base 1, and the support bars 8 can assist in supporting the connecting shaft of the crank 2. The cutting frame 15 is slidably connected to the base 1, and the threaded frame 13 is slidably connected to the base 1, and the threaded frame 13 can drive the cutting frame 15 to move.

[0022] See also Figure 1 , Figure 2 , Figure 4 The quick-change mechanism 6 includes a connecting column 61, the right end of the cutting knife 5 is fixedly connected to the connecting column 61, the inside of the reciprocating rod 4 is slidably connected to a pull rod 62, the lower end of the pull rod 62 is fixedly connected to a limiting column 63, the upper end of the pull rod 62 is fixedly connected to a handle 65, a spring 64 is provided on the outside of the pull rod 62, the handle 65 is in contact with the reciprocating rod 4, and the handle 65 can drive the limiting column 63 to move through the pull rod 62, the connecting column 61 is slidably connected to the reciprocating rod 4, the limiting column 63 is slidably connected to the connecting column 61, the connecting column 61 is slidably connected to the reciprocating rod 4, one end of the spring 64 is fixedly connected to the reciprocating rod 4, and the other end of the spring 64 is fixedly connected to the limiting column 63, and the spring 64 can drive the limiting column 63 to automatically reset through elastic force.

[0023] The specific implementation process of the utility model is as follows: when in use, the hand wheel 14 is rotated, the hand wheel 14 drives the screw rod 12 to rotate, and the screw rod 12 drives the cutting frame 15 to move through the threaded cooperation with the threaded frame 13 during the rotation process. When the cutting frame 15 moves to a predetermined position, the hand wheel 14 is stopped, and then the motor 10 is started, and the motor 10 drives the crank 2 to rotate. During the rotation process, the crank 2 can drive the reciprocating rod 4 and the cutting knife 5 to move through the swing arm 3, and the cutting knife 5 can cut the material between the cutting knife 5 and the cutting frame 15 during the movement process;

[0024] When the cutting knife 5 needs to be maintained, the handle 65 is pulled, and the handle 65 drives the limiting column 63 to move through the pull rod 62 and compresses the spring 64. When the limiting column 63 is separated from the connecting column 61, the limiting of the connecting column 61 can be released, and then the cutting knife 5 can be conveniently removed from the reciprocating rod 4.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting machine that is easy to adjust, comprising a base (1), characterized in that: A crank (2) is mounted on the right upper end of the base (1) via a bearing, a swing arm (3) is mounted on the outer side of a connecting shaft at the upper end of the crank (2) via a bearing, a reciprocating rod (4) is hingedly mounted on the outer left side of the swing arm (3), the left end of the reciprocating rod (4) contacts a cutting knife (5), a quick-change mechanism (6) is arranged on the reciprocating rod (4), a counterweight (9) is fixedly connected to the left end of the crank (2), a motor (10) is fixedly mounted inside the lower end of the base (1), two symmetrically distributed fixing frames (11) are fixedly connected to the left lower end of the base (1), a screw rod (12) is mounted inside the two fixing frames (11) via a bearing, the outer side of the screw rod (12) is connected to a threaded frame (13) via a thread, the upper end of the threaded frame (13) is fixedly connected to a cutting frame (15), and the left end of the screw rod (12) is fixedly connected to a hand wheel (14).

2. The easily adjustable cutting machine according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to a guide frame (7), and the guide frame (7) is slidably connected to the reciprocating rod (4).

3. The adjustable cutting machine according to claim 1, characterized in that: The upper end of the output shaft of the motor (10) is fixedly connected to the lower end of the connecting shaft of the crank (2), and a plurality of evenly distributed support bars (8) are fixedly connected to the outer side of the connecting shaft of the crank (2), and the support bars (8) are in contact with the base (1).

4. The easily adjustable cutting machine according to claim 1, characterized in that: The cutting frame (15) is slidably connected to the base (1), and the threaded frame (13) is slidably connected to the base (1).

5. The adjustable cutting machine according to claim 1, characterized in that: The quick-change mechanism (6) comprises a connecting column (61), the right end of the cutting knife (5) is fixedly connected to the connecting column (61), the interior of the reciprocating rod (4) is slidably connected to a pull rod (62), the lower end of the pull rod (62) is fixedly connected to a limiting column (63), the upper end of the pull rod (62) is fixedly connected to a handle (65), a spring (64) is provided on the outer side of the pull rod (62), and the handle (65) is in contact with the reciprocating rod (4).

6. The easily adjustable cutting machine according to claim 5, characterized in that: The connecting column (61) is slidably connected to the reciprocating rod (4), the limiting column (63) is slidably connected to the connecting column (61), the connecting column (61) is slidably connected to the reciprocating rod (4), one end of the spring (64) is fixedly connected to the reciprocating rod (4), and the other end of the spring (64) is fixedly connected to the limiting column (63).

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