Eccentric garland saw

Abstract

The utility model discloses an eccentric garland saw, which belongs to the technical field of manual tools and comprises a base, an adjustable support unit is arranged at the top of the base, a saw blade unit is arranged between the base and the adjustable support unit, and an auxiliary unit is arranged on one side of the saw blade unit. The adjustable supporting unit comprises a working table top, a movable supporting arm is arranged on the upper surface of the working table top, the influence caused by the fact that a workpiece is too long during workpiece machining is avoided by adjusting the position of the supporting arm, the movable supporting arm is arranged on the upper surface of the working table top, and when the workpiece is cut, the workpiece can be cut through the movable supporting arm. And the position of the supporting arm is adjusted according to needs, the situation that advancing of the cut workpiece is hindered due to the existence of the supporting arm can be effectively avoided, and the workpiece machining convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a eccentric pull flower saw belongs to hand tool technical field. BACKGROUND

[0002] With the development of economy, people pay more and more attention to children's education. In addition to the traditional education field, some extracurricular training handicraft classes are also favored by parents. In addition to stimulating children's interest, cultivating children's hand-brain cooperation and tool using ability, handicraft classes can also cultivate children's team cooperation spirit and creation consciousness. In the process of handicraft making, children's self-confidence, observation, creativity and practical ability can be fully developed.

[0003] A safe pull flower saw is disclosed in Chinese Utility Model Patent No. CN217648534U, comprising: a base, a working panel fixed above the base, a support arm fixedly connected with the base above the working panel; the support arm is hingedly fixed with an upper rocker arm extending out of the support arm, and a lower rocker arm is hingedly fixed in the base, and the upper rocker arm is parallel to the lower rocker arm; one end of the upper rocker arm extending out of the support arm is connected with the lower rocker arm through a wire saw, and the other end is hingedly connected with the lower rocker arm through a connecting rod; the working panel is provided with a through hole for the wire saw to pass through; the base is provided with a motor, and the motor drives the lower rocker arm to reciprocatingly swing up and down through an eccentric wheel.

[0004] The above-mentioned scheme has the following shortcomings in actual use:

[0005] This scheme moves the screw rod used to adjust the tightness of the wire saw forward, reduces the shaking, improves the cutting accuracy, and reduces the burr. However, in actual use, when the above-mentioned scheme is used to process longer workpieces, the support arm will hinder the advancing direction of the workpiece, and the students need to take out the workpiece, turn it over and cut it again, which will waste a lot of time and pose a certain safety hazard. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an eccentric pull flower saw to solve the problems in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] Compared with the prior art, the utility model provides a design of an eccentric pull flower saw, which comprises a base, an adjustable support unit is arranged on the top of the base, a saw blade unit is arranged between the base and the adjustable support unit, and an auxiliary unit is arranged on one side of the saw blade unit; the adjustable support unit comprises a workbench surface, a movable support arm is arranged on the upper surface of the workbench surface, and the position of the support arm is adjusted to avoid affecting the processing of the workpiece due to the excessive length of the workpiece.

[0009] Preferably, the rear side of the upper surface of the workbench is provided with a guide chute, the guide chute is in an arc structure, and the bottom end of the supporting arm is provided with a sliding seat corresponding to the guide chute.

[0010] Preferably, the front side of the bottom of the supporting arm is provided with a fixing block, the fixing block is provided with an adjusting arm, the bottom end of the adjusting arm is provided with a bolt, and the upper surface of the workbench is provided with a plurality of positioning holes corresponding to the bolt.

[0011] Preferably, the supporting arm is provided with an LED module, and the LED module faces the workbench.

[0012] Preferably, the saw blade unit comprises a motor arranged in the base, an inverted hook sliding block arranged in the supporting arm and a saw blade, an output shaft of the motor is connected with a driving plate through an eccentric shaft, the top of the driving plate is rotationally connected with a driving seat through a connecting rod, one side of the driving seat is slidably connected with a support through a sliding block, the bottom end of the support is connected with the bottom of the inner wall of the base, the end of the saw blade is provided with a limiting protrusion, and the inverted hook sliding block and the driving seat are provided with a first gap and a second gap corresponding to the saw blade.

[0013] Preferably, a connecting seat is inserted into the inverted hook sliding block, an adjusting screw is threadedly connected to the inverted hook sliding block, and load carriers are slidably connected to the two sides of the connecting seat.

[0014] Preferably, the auxiliary unit comprises a mounting arm arranged on one side of the upper surface of the workbench, the end of the mounting arm is provided with a movable wooden pressing telescopic rod, the mounting arm is threadedly connected with a locking screw for limiting the movement of the wooden pressing telescopic rod, the bottom end of the wooden pressing telescopic rod is provided with a wooden pressing plate, and the wooden pressing plate is provided with a third gap on one side.

[0015] Preferably, the wooden pressing telescopic rod is provided with a connecting piece, and two saw blade fixing columns are rotationally connected to the connecting piece.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] By arranging the movable supporting arm on the upper surface of the workbench, the position of the supporting arm can be adjusted according to needs when cutting the workpiece, the existence of the supporting arm can be effectively avoided to hinder the movement of the workpiece, and the convenience of workpiece processing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required to be used in the following description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] Figure 1 It is a structure schematic view of the whole of the present application.

[0020] Figure 2 It is a structure sectional view of the whole of the present application.

[0021] Figure 3 It is a structure exploded view of the adjustable supporting unit of the present application.

[0022] Figure 4 It is a structure exploded view of the saw blade unit of the present application.

[0023] Figure 5 It is a structure schematic view of the auxiliary unit of the present application.

[0024] In the drawing: 100, base; 200, adjustable supporting unit; 201, workbench surface; 202, supporting arm; 203, guide sliding groove; 204, sliding seat; 205, fixed block; 206, adjusting arm; 207, bolt; 208, positioning hole; 209, LED module; 300, saw blade unit; 301, motor; 302, eccentric shaft; 303, driving plate; 304, connecting rod; 305, driving seat; 306, support; 307, sliding block; 308, sliding rail; 309, bearing; 310, elastic member; 311, connecting seat; 312, barbed sliding block; 313, adjusting screw; 314, saw blade; 315, notch one; 316, notch two; 400, auxiliary unit; 401, mounting arm; 402, wooden pressing telescopic rod; 403, locking screw; 404, wooden pressing plate; 405, notch three; 406, connecting piece; 407, saw blade fixing column. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Please refer to Figures 1-5 The present application provides a technical solution:

[0027] As Figure 1 and Figure 2 shown, an eccentric pull flower saw, comprising a base 100 as the basic support part of the whole device, the top of the base 100 is provided with an adjustable support unit 200, which can change its position as needed, so as to avoid the obstruction to the cutting workpiece, improve the convenience of workpiece processing, the base 100 and the adjustable support unit 200 are provided with a saw blade unit 300, one side of the saw blade unit 300 is provided with an auxiliary unit 400.

[0028] As Figure 3 shown, the adjustable support unit 200 comprises a workbench surface 201, the upper surface of the workbench surface 201 is provided with a movable support arm 202, which can avoid the influence caused by the too long workpiece during processing.

[0029] In order to realize the flexible movement of the support arm 202, the rear side of the upper surface of the workbench surface 201 is provided with an arc-shaped guide chute 203, the slide block 204 at the bottom end of the support arm 202 is adapted to it, so that the support arm 202 can slide along the arc-shaped path, which is convenient to adjust the position according to the length of the workpiece and the processing angle, and avoid the influence of the too long workpiece on the processing.

[0030] Further, the front side of the bottom of the support arm 202 is provided with a fixed block 205, the fixed block 205 is provided with an adjusting arm 206, the bottom end of the adjusting arm 206 is provided with a latch 207, the upper surface of the workbench surface 201 is provided with a plurality of positioning holes 208 corresponding to the latch 207, which can realize accurate positioning and fixing after adjusting the position of the support arm 202.

[0031] Further, the support arm 202 is provided with an LED module 209, the LED module 209 faces the workbench surface 201, which can provide sufficient illumination for the processing area, so that the operator can clearly observe the processing details when the light is not good.

[0032] As Figure 4As shown, the saw blade unit 300 comprises a motor 301 arranged in the base 100, a barbed slider 312 and a saw blade 314 arranged in the support arm 202, the output shaft of the motor 301 is connected with a driving plate 303 through an eccentric shaft 302, the top of the driving plate 303 is rotationally connected with a driving seat 305 through a connecting rod 304, one side of the driving seat 305 is slidingly connected with a bracket 306 through a sliding block 307, the bottom end of the bracket 306 is connected with the bottom of the inner wall of the base 100, which converts the rotary motion of the motor into the reciprocating linear motion of the driving seat 305, the end of the saw blade 314 is provided with a limiting protrusion, and the barbed slider 312 and the driving seat 305 are both provided with a gap one 315 and a gap two 316 corresponding to the saw blade 314, which facilitates the installation and fixation of the saw blade 314 and enables the saw blade 314 to stably move with the driving seat 305.

[0033] It should be noted that the eccentricity of the eccentric shaft 302 is 2-3mm, the saw blade 314 has a sawtooth height of 0.5mm and a sawtooth length of 1mm, the gap two 316 has a funnel-shaped structure, the maximum distance of the bottom end of the gap two 316 is greater than the limiting protrusion width of the saw blade 314, and the minimum distance of the top end of the gap two 316 is less than the limiting protrusion width of the saw blade 314.

[0034] Further, the barbed slider 312 is inserted with a connecting seat 311, and the barbed slider 312 is threadedly connected with an adjusting screw 313, the adjusting screw 313 threadedly connected can fine-tune the position of the barbed slider 312, ensuring that the tension of the saw blade 314 is appropriate, the two sides of the connecting seat 311 are slidingly connected with a bearing 309, the bearing 309 is slidingly connected with the inner wall of the support arm 202 through a sliding rail 308, and an elastic member 310 is arranged between the bearing 309 and the sliding rail 308, which can buffer the vibration during sawing and assist in keeping the saw blade 314 stable, wherein the sliding connection of the bearing 309 and the connecting seat 311 can change the cutting direction of the saw blade 314 when adjusting the position of the support arm 202.

[0035] When installing the saw blade 314, first fix the bottom end of the saw blade 314, pass the bottom end of the saw blade 314 through the gap two 316, then move the saw blade 314 upward along the slope of the driving seat 305, so that the limiting protrusion is in close contact with the slope on the driving seat 305, then pass the top end of the saw blade 314 through the gap one 315 on the barbed slider 312, and then tighten the saw blade 314 by adjusting the screw 313 to complete the fixation of the saw blade 314.

[0036] As Figure 5As shown, the auxiliary unit 400 includes a mounting arm 401 arranged on one side of the upper surface of the workbench top 201, the end of the mounting arm 401 is provided with a movable wooden press telescopic rod 402, the mounting arm 401 is threadedly connected with a locking screw 403 for limiting the movement of the wooden press telescopic rod 402, the bottom end of the wooden press telescopic rod 402 is provided with a wooden press plate 404, one side of the wooden press plate 404 is provided with a notch three 405, wherein the notch three 405 is an open gap, which facilitates the movement of the saw blade 314 into the notch three 405, in order to prevent the workpiece from being driven by the saw blade 314 to move up and down and affect the accuracy when cutting the workpiece, the workpiece is fixed by the wooden press plate 404 to improve the accuracy, and the telescopic design can meet the fixing requirements of different thicknesses.

[0037] Further, the wooden press telescopic rod 402 is provided with a connecting piece 406, the connecting piece 406 is rotatably connected with two saw blade fixing columns 407, and the two saw blade fixing columns 407 are used for clamping the saw blade 314 to prevent it from shaking left and right.

[0038] The working process of the embodiment is as follows: when the pull flower saw is actually used, first, according to the length of the workpiece and the processing requirement, the support arm 202 is moved, the sliding block 204 is slid along the guide sliding groove 203, the adjusting arm 206 bottom end pin 207 is inserted into the corresponding positioning hole 208 after being adjusted to the appropriate position, the support arm 202 is fixed, the LED module 209 is turned on, the workbench top 201 is illuminated, the workpiece is placed on the workbench top 201, the wooden press telescopic rod 402 is moved, the wooden press plate 404 is pressed against the workpiece, the locking screw 403 is tightened, the motor 301 is started, the motor 301 drives a series of transmission components such as the eccentric shaft 302 and the driving plate 303, so that the saw blade 314 performs reciprocating sawing movement, and the workpiece starts to be processed.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An eccentric pull-up saw comprising a base (100), characterized in that, The top of the base (100) is provided with an adjustable support unit (200), and a saw blade unit (300) is arranged between the base (100) and the adjustable support unit (200), and one side of the saw blade unit (300) is provided with an auxiliary unit (400). The adjustable support unit (200) comprises a workbench top (201), the upper surface of the workbench top (201) is provided with a movable support arm (202), the rear side of the upper surface of the workbench top (201) is provided with a guide sliding groove (203), the guide sliding groove (203) is in an arc structure, the bottom end of the support arm (202) is provided with a sliding seat (204) corresponding to the guide sliding groove (203), and the position of the support arm (202) is adjusted to avoid the influence caused by the too long workpiece during machining.

2. The eccentric pull-up saw according to claim 1, wherein The front side of the bottom of the support arm (202) is provided with a fixing block (205), the fixing block (205) is provided with an adjusting arm (206), the bottom end of the adjusting arm (206) is provided with a latch (207), and the upper surface of the workbench top (201) is provided with a plurality of positioning holes (208) corresponding to the latch (207).

3. The eccentric pull-up saw according to claim 1, wherein The support arm (202) is provided with an LED module (209), and the LED module (209) faces the workbench top (201).

4. The eccentric pull-up saw according to claim 1, wherein The saw blade unit (300) comprises a motor (301) arranged in the base (100), an inverted hook sliding block (312) and a saw blade (314) arranged in the support arm (202), the output shaft of the motor (301) is connected with a driving plate (303) through an eccentric shaft (302), the top of the driving plate (303) is rotatably connected with a driving seat (305) through a connecting rod (304), one side of the driving seat (305) is slidably connected with a support (306) through a sliding block (307), the bottom end of the support (306) is connected with the bottom of the inner wall of the base (100), the ends of the saw blade (314) are provided with limiting protrusions, and the inverted hook sliding block (312) and the driving seat (305) are provided with a first gap (315) and a second gap (316) corresponding to the saw blade (314).

5. A pull-up rose saw according to claim 4, wherein The inverted hook sliding block (312) is inserted with a connecting seat (311), the inverted hook sliding block (312) is threadedly connected with an adjusting screw (313), the connecting seat (311) is slidably connected with a bearing (309) on both sides, the bearing (309) is slidably connected with the inner wall of the support arm (202) through a sliding rail (308), and an elastic member (310) is arranged between the bearing (309) and the sliding rail (308).

6. The eccentric pull-up saw according to claim 1, wherein, The auxiliary unit (400) comprises a mounting arm (401) arranged on one side of the upper surface of the workbench (201), the end of the mounting arm (401) is provided with a movable wooden pressing telescopic rod (402), a locking screw (403) for limiting the movement of the wooden pressing telescopic rod (402) is threadedly connected to the mounting arm (401), the bottom end of the wooden pressing telescopic rod (402) is provided with a wooden pressing plate (404), and an opening (405) is formed in one side of the wooden pressing plate (404).

7. A pull-up rose saw according to claim 6, wherein The wooden pressing telescopic rod (402) is provided with a connecting piece (406), and two saw blade fixing columns (407) are rotatably connected to the connecting piece (406).

Images