Plate cutting sawing machine for machining

Abstract

The utility model discloses a plate cutting sawing machine for machining, which comprises a frame, two cases fixed on one side of the frame, a fixed sleeve fixed at the bottom of the upper case, a movable sleeve movably inserted in the fixed sleeve, and the fixed sleeve and the movable sleeve movably sleeve the surface of a saw blade on one side, deviating from the frame, of two saw wheels. A fixing frame is fixed to the bottom of the movable sleeve and provided with two sets of guide wheels located on the front face and the back face of the movable sleeve respectively. The fixed sleeve and the movable sleeve capable of moving up and down are arranged to isolate and protect the exposed part of the saw blade, when a plate workpiece is fed backwards to be cut, the guide wheel is extruded to push the movable sleeve to move upwards to give way to the workpiece, and after cutting is completed, under the action of the balancing weight and the gravity of the movable sleeve, the movable sleeve can move upwards to give way to the workpiece. And then the movable sleeve moves downwards to be reset, it is ensured that the saw blade is highly isolated from workers in the whole process, the hidden danger of mistaken touch is avoided, and the operation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal cutting technology, specifically to a sheet metal cutting saw for machining. Background Technology

[0002] A vertical band saw is a multi-functional cutting device capable of cutting various metal materials, making it an important type of sheet metal cutting equipment. The main structural components of a vertical band saw include the machine body, saw wheel system, saw blade and tensioning device, worktable, cooling and lubrication system, and electrical control system. The machine body is the foundation of the band saw, supporting the upper and lower saw wheels and other components. The cooling and lubrication system provides cooling and lubrication to the saw blade during cutting, extending its lifespan and improving cutting quality.

[0003] Vertical band saws can quickly cut various metal materials. They are electrically driven, making them more environmentally friendly and energy-saving. Using a band saw blade, they can accurately cut the required shapes and sizes. They are easy to operate, and operators only need simple training to master the operating skills. Due to their obvious advantages, they are highly favored and widely used in machinery manufacturing, metal processing and other fields.

[0004] Existing vertical band saws, designed to cut workpieces of varying thicknesses, have a relatively long exposed saw blade above the worktable. A longer exposed blade allows for greater adaptability to thicker workpieces. However, the saw blade is extremely sharp, and the longer it is exposed during high-speed operation, the greater the potential danger. Since operators must remain constantly near the machine during operation, our company has designed and proposed a structurally optimized machine tool solution to reduce the saw blade's hazard and improve operator safety. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sheet metal cutting saw for machining, which solves the problem that the excessive exposed length of the saw blade in existing vertical band saws for sheet metal cutting poses a danger to the safety of workers.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A sheet metal cutting saw for machining includes a frame, two housings fixed to one side of the frame, two saw wheels installed in the two housings, a cooling pump installed in the upper housing, and saw blades installed on the two saw wheels. A fixed sleeve is fixed at the bottom of the upper housing, and a movable sleeve is movably inserted into the inside of the fixed sleeve. A sliding groove is vertically provided on the upper side of the fixed sleeve, and a limiting pin is movably inserted into the sliding groove on the surface of the movable sleeve.

[0008] Both the fixed sleeve and the movable sleeve are movably sleeved on the saw blade surface of the two saw wheels on the side away from the frame. The frame is also fixed with a protective slot sleeved on the saw blade surface of the two saw wheels on the side close to the frame. A flip-up slot cover is installed on the protective slot.

[0009] The bottom of the movable sleeve is fixed with a fixing frame, and two sets of guide wheels are respectively installed on the fixing frame on the front and back of the movable sleeve. The guide wheels include a high-position wheel and a low-position wheel located below the high-position wheel, and the low-position wheel is located between the high-position guide wheels on the front and back.

[0010] A counterweight is fixedly installed on the fixed frame, and a cooling and lubricating fluid nozzle is installed on the fixed sleeve. The nozzle is connected to the outlet of the cooling pump through a connecting pipe.

[0011] Preferably, a reinforcing angle plate is fixed between the surface of the fixing sleeve and the upper chassis.

[0012] Preferably, the sliding groove and the limiting pin are symmetrically arranged on both sides of the fixed sleeve and the movable sleeve. The limiting pin is a knob bolt with threads only at the end. The limiting pin is threadedly connected to the threaded hole on the movable sleeve and has an elastic rubber pad located on the side of the fixed sleeve movably sleeved on its surface.

[0013] Preferably, both the fixed sleeve and the movable sleeve have an opening groove on their front sides for installing the saw blade.

[0014] Preferably, the front and back sides of the inner wall of the fixed sleeve are vertically fixed with symmetrical guide rails, and the outer wall of the movable sleeve is fixed with a slide bar that is slidably connected to the guide rails.

[0015] Preferably, the fixing frame, guide wheel and counterweight are arranged symmetrically from left to right.

[0016] Preferably, the nozzle is mounted on the top of the back of the fixing sleeve, and a snap-fit ​​baffle corresponding to the position of the nozzle is snapped onto the top of the front of the fixing sleeve.

[0017] Preferably, the snap-on baffle is fixed to the fixing sleeve by screws installed on the front, and the snap-on baffle also includes a rearwardly inclined guide plate disposed on the lower back side.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention isolates and protects the exposed portion of the saw blade by setting a fixed sleeve and a movable sleeve that can move up and down. A guide wheel is set below the movable sleeve. When the workpiece is fed backward for cutting, the guide wheel is squeezed and pushes the movable sleeve upward to make way for the workpiece. After cutting, under the action of the counterweight and the weight of the movable sleeve itself, the movable sleeve moves downward to reset. This ensures that the saw blade is highly isolated from the operator throughout the process, avoiding the risk of accidental contact and reducing operational risks. This solves the problem of the large exposed length of the saw blade in existing vertical band saws for cutting sheet metal in machining, which poses a danger to the safety of operators. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of this utility model;

[0021] Figure 2 The front view of the opened chassis and protective card slot of this utility model;

[0022] Figure 3 This is a partial front view of the structure at the corresponding position of the fixing sleeve of this utility model;

[0023] Figure 4 This is a front sectional view of the structure at the corresponding position of the fixed sleeve of this utility model;

[0024] Figure 5 This is a partial side view of the structure of the fixed sleeve of this utility model at the corresponding position;

[0025] Figure 6 This is a partial side sectional view of the corresponding position of the fixing sleeve of this utility model;

[0026] Figure 7 This is a top cross-sectional view of the corresponding position of the limiting pin of this utility model.

[0027] In the diagram: 1. Frame; 2. Chassis; 3. Saw wheel; 4. Cooling pump; 5. Saw blade; 6. Fixed sleeve; 7. Movable sleeve; 8. Slide groove; 9. Limit pin; 10. Protective slot; 11. Flip-over cover; 12. Fixed frame; 13. Guide wheel; 131. High-position wheel; 132. Low-position wheel; 14. Counterweight; 15. Nozzle; 16. Connecting pipe; 17. Reinforcing angle plate; 18. Threaded hole; 19. Elastic rubber pad; 20. Opening groove; 21. Guide rail; 22. Slide bar; 23. Snap-on baffle; 231. Guide plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-7 As shown, this utility model provides a technical solution: a plate cutting saw for machining, including a frame 1, two housings 2 fixed on one side of the frame 1, two saw wheels 3 installed in the two housings 2, a cooling pump 4 installed in the upper housing 2, and saw blades 5 installed on the two saw wheels 3. A fixed sleeve 6 is fixed at the bottom of the upper housing 2, and a reinforcing angle plate 17 is fixed between the surface of the fixed sleeve 6 and the upper housing 2 to improve the structural strength and ensure that the fixed sleeve 6 and the movable sleeve 7 remain vertical, so as to facilitate the vertical sliding of the movable sleeve 7.

[0030] The fixed sleeve 6 is movably inserted into the interior of the movable sleeve 7. The front and back sides of the inner wall of the fixed sleeve 6 are vertically fixed with symmetrical guide rails 21. The outer wall of the movable sleeve 7 is fixed with a slide bar 22 that is slidably connected to the guide rail 21 to ensure that the movable sleeve 7 moves smoothly up and down. The front of both the fixed sleeve 6 and the movable sleeve 7 is provided with an opening groove 20 for installing the saw blade 5, which facilitates the installation and removal of the saw blade 5 and makes it easy to use.

[0031] A sliding groove 8 is vertically provided on the upper side of the fixed sleeve 6. A limiting pin 9 is installed on the surface of the movable sleeve 7 and is movably inserted into the sliding groove 8. The sliding groove 8 and the limiting pin 9 are symmetrically arranged on both sides of the fixed sleeve 6 and the movable sleeve 7. The limiting pin 9 is a knob bolt with threads only at the end. The limiting pin 9 is threadedly connected to the threaded hole 18 on the movable sleeve 7 and the surface is movably fitted with an elastic rubber pad 19 located on the side of the fixed sleeve 6. After loosening the limiting pin 9, the movable sleeve 7 is released and can move up and down. When the limiting pin 9 is tightened, the elastic rubber pad 19 plays an anti-slip and self-locking role, locking the movable sleeve 7 and the fixed sleeve 6, and can temporarily fix the movable sleeve 7 at a certain height position and prevent it from moving up and down automatically.

[0032] Both the fixed sleeve 6 and the movable sleeve 7 are movably sleeved on the surface of the saw blade 5 on the side of the two saw wheels 3 away from the frame 1. The frame 1 is also fixed with a protective slot 10 sleeved on the surface of the saw blade 5 on the side of the two saw wheels 3 near the frame 1. A flip-up slot cover 11 is installed on the protective slot 10.

[0033] The bottom of the movable sleeve 7 is fixed with a fixing frame 12. Two sets of guide wheels 13 are respectively installed on the fixing frame 12, located on the front and back of the movable sleeve 7. The guide wheels 13 include a high wheel 131 and a low wheel 132 located below the high wheel 131. The low wheel 132 is located between the high guide wheels 13 on the front and back. A counterweight 14 is fixedly installed on the fixing frame 12. The fixing frame 12, guide wheels 13 and counterweight 14 are all symmetrically arranged to ensure balanced left and right weight and improve the movement stability of the movable sleeve 7.

[0034] A cooling and lubricating fluid nozzle 15 is installed on the fixed sleeve 6. The nozzle 15 is connected to the outlet of the cooling pump 4 through the connecting pipe 16. The nozzle 15 is installed on the top of the back of the fixed sleeve 6. A snap-fit ​​baffle 23 corresponding to the position of the nozzle 15 is snapped on the top of the front of the fixed sleeve 6. The snap-fit ​​baffle 23 is fixed to the fixed sleeve 6 by screws installed on the front. The snap-fit ​​baffle 23 also includes a rearwardly inclined guide plate 231 set on the lower back to block and reflect the lubricating and cooling fluid, thereby improving the lubrication and cooling effect on the saw blade 5.

[0035] Working principle:

[0036] The exposed part of the saw blade 5 is isolated and protected by the protective slot 10, the flip-top cover 11, the fixed sleeve 6, and the movable sleeve 7. When the workpiece is fed from front to back on the workbench for cutting, the guide wheel 13 under the movable sleeve 7 is squeezed, which pushes the movable sleeve 7 to move vertically upward under the action of the guide rail 21 and the slide bar 22 to make way for the workpiece to be cut. After the cutting is completed, under the action of the counterweight 14 and the gravity of the movable sleeve 7 itself, the movable sleeve 7 moves downward to reset, ensuring that the saw blade 5 is highly isolated from the operator throughout the process, avoiding the risk of accidental contact and reducing the risk of operation.

[0037] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheet metal cutting saw for machining, comprising a frame (1), two housings (2) fixed to one side of the frame (1), two saw wheels (3) installed in the two housings (2), a cooling pump (4) installed in the upper housing (2), and saw blades (5) installed on the two saw wheels (3), characterized in that: A fixed sleeve (6) is fixed at the bottom of the chassis (2) above. A movable sleeve (7) is movably inserted into the inside of the fixed sleeve (6). A sliding groove (8) is vertically provided on the upper side of the fixed sleeve (6). A limiting pin (9) is movably inserted into the sliding groove (8) on the surface of the movable sleeve (7). The fixed sleeve (6) and the movable sleeve (7) are both movably sleeved on the surface of the saw blade (5) on the side of the two saw wheels (3) away from the frame (1). The frame (1) is also fixed with a protective slot (10) sleeved on the surface of the saw blade (5) on the side of the two saw wheels (3) close to the frame (1). The protective slot (10) is equipped with a flip-up slot cover (11). The bottom of the movable sleeve (7) is fixed with a fixing frame (12), and two sets of guide wheels (13) located on the front and back of the movable sleeve (7) are respectively installed on the fixing frame (12). The guide wheels (13) include a high wheel (131) and a low wheel (132) located below the high wheel (131), and the low wheel (132) is located between the high guide wheels (13) on the front and back. A counterweight (14) is fixedly installed on the fixed frame (12), and a cooling and lubricating fluid nozzle (15) is installed on the fixed sleeve (6). The nozzle (15) is connected to the outlet of the cooling pump (4) through a connecting pipe (16).

2. The sheet metal cutting saw for machining according to claim 1, characterized in that: A reinforcing angle plate (17) is fixed between the surface of the fixed sleeve (6) and the upper chassis (2).

3. The sheet metal cutting saw for machining according to claim 1, characterized in that: The slide (8) and the limiting pin (9) are symmetrically arranged on both sides of the fixed sleeve (6) and the movable sleeve (7). The limiting pin (9) is a knob bolt with threads only at the end. The limiting pin (9) is threadedly connected to the threaded hole (18) on the movable sleeve (7) and the surface is movably fitted with an elastic rubber pad (19) located on the side of the fixed sleeve (6).

4. The sheet metal cutting saw for machining according to claim 1, characterized in that: Both the fixed sleeve (6) and the movable sleeve (7) have an opening groove (20) on their front sides for installing the saw blade (5).

5. The sheet metal cutting saw for machining according to claim 1, characterized in that: The front and back sides of the inner wall of the fixed sleeve (6) are vertically fixed with guide rails (21) that are symmetrical in front and back and symmetrical in left and right. The outer wall of the movable sleeve (7) is fixed with a slide bar (22) that is slidably connected to the guide rail (21).

6. The sheet metal cutting saw for machining according to claim 1, characterized in that: The fixed frame (12), guide wheel (13) and counterweight (14) are all arranged symmetrically on the left and right.

7. The sheet metal cutting saw for machining according to claim 1, characterized in that: The nozzle (15) is installed on the top of the back of the fixed sleeve (6), and a snap-on baffle (23) corresponding to the position of the nozzle (15) is snapped onto the top of the front of the fixed sleeve (6).

8. The sheet metal cutting saw for machining according to claim 7, characterized in that: The snap-on baffle (23) is fixed to the fixing sleeve (6) by screws installed on the front side. The snap-on baffle (23) also includes a rearwardly inclined guide plate (231) provided on the lower back side.

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