Saw blade detection device for preventing workpiece feeding blockage of sliding table saw

Abstract

The utility model relates to the technical field of furniture production, and discloses a saw blade detection device for a sliding table saw to prevent workpiece feeding blocking, which comprises a saw table, a switching mechanism is movably connected in the saw table, the switching mechanism comprises a fixed star wheel, the outer ring of the fixed star wheel is meshed and connected with a planet wheel, and the fixed star wheel is used for driving the planet wheel to rotate. Saw blades are fixedly connected to the back faces of the planet wheels, grooves matched with the saw blades are formed in the top of the saw table, the saw blades can move conveniently, and fixing frames are movably connected to the front faces of the planet wheels and used for driving the saw blades to switch. The feeding mechanism drives a workpiece to be fed rightwards in the operation process, when resistance is increased, the detection mechanism is triggered, the function of automatically detecting the feeding resistance is achieved, and the equipment production efficiency is improved. The indexing mechanism is triggered through the transmission mechanism in the moving process of the detection mechanism, power transmission of the detection mechanism is achieved, and the equipment production efficiency is improved; the switching mechanism is triggered in the operation process of the indexing mechanism, and the functions of automatically replacing the saw blade, saving energy and protecting the environment are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture production, in particular to a saw blade detection device used for a sliding table saw to prevent a workpiece from being obstructed in feeding. Background Art

[0002] Furniture, also known as household items, is equipment for living or working convenience in daily life and social activities. Traditional furniture is independent of the main structure of the house and can be moved. Modern furniture has become an integral part of the building. Furniture in a narrow sense only includes appliances with functions such as sitting, lying, leaning, storage, and partitioning. Furniture in a broad sense includes all kinds of household appliances, such as household appliances, lamps, etc.

[0003] The most commonly used material in furniture manufacturing is wood, and the most commonly used equipment in the wood processing process is the precision sliding table saw. The main part of the sliding table saw includes the bed, workbench, longitudinal and cross-section guides, main saw, scoring saw, transmission and other parts. The structure and working principle are similar to those of ordinary circular saws, and it can be used alone as an ordinary circular saw.

[0004] Sliding table saws often have many faults after long-term use. During the workpiece feeding process, the workpiece often cannot be pushed or is pushed with great difficulty. The main reason for this situation is that the saw blade has become dull due to long-term use. When the saw blade becomes dull, it will cause difficulty in cutting, which will cause more saw foam to be generated, wasting energy and raw materials, causing more serious environmental pollution, and affecting production efficiency. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a saw blade detection device for a sliding table saw to prevent workpiece feeding from being obstructed, which has the advantages of energy saving and environmental protection, and improves production efficiency, solving the problems of low production efficiency, energy waste and environmental pollution of existing equipment.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a saw blade detection device for a sliding table saw to prevent the workpiece from being obstructed in feeding, comprising a saw table, wherein the saw table is movably connected to a switching mechanism inside, the switching mechanism comprises a star wheel, the outer ring of the star wheel is meshingly connected to a planetary wheel for driving the planetary wheel to rotate, a saw blade is fixedly connected to the back of the planetary wheel, a groove adapted to the saw blade is provided on the top of the saw table to facilitate the movement of the saw blade, and a fixed frame is movably connected to the front of the planetary wheel for driving the saw blade to switch.

[0009] Furthermore, a feed mechanism is movably connected to the top of the saw table, and the feed mechanism includes a feed block. A push plate is movably connected to the right side of the feed block through an extrusion spring. A groove matching the push plate is opened on the top of the saw table for installing the push plate to facilitate the movement of the push plate. An inclined block is fixedly connected to the bottom of the push plate.

[0010] Furthermore, a detection mechanism is movably connected to the bottom of the feed mechanism, and the detection mechanism includes an outer rod, a vertical rod is movably connected to the middle of the outer rod, and the top of the vertical rod is movably connected to the feed block through a tension spring, which is used to tighten the outer rod to facilitate resetting the detection mechanism; an inner rod is movably connected to the inside of the outer rod, and the inner rod is fixedly connected to the vertical rod to drive the inner rod to move; a hole matching the inner rod is provided inside the outer rod for installing the inner rod to facilitate movement of the inner rod; a top rod is fixedly connected to the left side of the outer rod, and a clamping block is movably connected to the bottom of the top rod, which is movably connected to the saw table through a reset spring to drive the clamping block to reset, and a pressure block is fixedly connected to the bottom of the inner rod.

[0011] Furthermore, a transmission mechanism is movably connected to the bottom of the saw table, and the transmission mechanism includes a push rod. A slope matched with a pressure block is provided on the top of the push rod to facilitate the pressure block to drive the push rod to move. The left end of the push rod is movably connected to the saw table through a return spring to drive the push rod to reset. The right end of the push rod is fixedly connected to a rack, and a gear is meshed on the top of the rack.

[0012] Furthermore, the switching mechanism is movably connected to a dividing mechanism on the front side, and the dividing mechanism includes a rotating shaft, the rear end of the rotating shaft is fixedly connected to a fixed frame for driving the fixed frame to rotate, the front end of the rotating shaft is fixedly connected to a groove wheel, the middle part of the gear is fixedly connected to a transmission shaft, the front end of the transmission shaft is fixedly connected to a turntable, the front side of the turntable is movably connected to a pawl, the outer ring of the pawl is movably connected to a ratchet, the inside of the ratchet is provided with a groove matched with the pawl, for driving the ratchet to rotate, the back side of the ratchet is fixedly connected to a dial, the outer ring of the dial is provided with a groove matched with the groove wheel to prevent collision, the top of the dial is fixedly connected to a lever, the groove wheel is provided with a groove matched with the lever, for driving the groove wheel to rotate.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a saw blade detection device for a sliding table saw to prevent workpiece feeding from being blocked, which has the following beneficial effects:

[0015] 1. The saw blade detection device for preventing the workpiece feeding from being blocked by the push table saw drives the wood to move to the right through the feed block and the push plate, and drives the inclined block to move to the left when encountering resistance, and drives the outer rod downward in the process of moving the inclined block, and compresses the spring of the outer ring of the inner rod in the process of moving the outer rod, and at the same time drives the push rod downward in the process of moving the outer rod, drives the clamping block to move to the left in the process of moving the push rod, releases the inner rod in the process of moving the clamping block, and moves downward under the action of the spring after the inner rod is released, drives the pressure block downward in the process of moving the inner rod, drives the push rod to move to the right in the process of moving the pressure block, drives the rack to move in the process of moving the push rod, and drives the gear to rotate in the process of moving the rack, so as to realize automatic detection of resistance in the process of feeding the workpiece, improve equipment production efficiency, and save energy.

[0016] 2. The saw blade detection device for preventing the workpiece from being obstructed in feeding by the sliding table saw drives the transmission shaft to rotate during the rotation of the gear, which drives the turntable to rotate during the rotation of the transmission shaft, which drives the pawl to rotate during the rotation of the turntable, which drives the ratchet to rotate during the rotation of the pawl, which drives the ratchet to rotate during the rotation of the ratchet, which drives the dial to rotate during the rotation of the dial, which drives the lever to rotate during the rotation of the lever, which drives the groove wheel to rotate during the rotation of the groove wheel, which drives the rotating shaft to rotate during the rotation of the rotating shaft, which drives the fixed frame to rotate during the rotation of the fixed frame, thereby realizing automatic saw blade replacement and energy-saving and environmental protection functions, and improving the production efficiency of the equipment.

[0017] 3. The saw blade detection device used for the sliding table saw to prevent the workpiece from being obstructed in feeding, when the saw blade is switched, the wood resistance is reduced, the bevel block is reset under the action of the extrusion spring, the outer rod is released during the movement of the bevel block, after the outer rod is released, the inner rod is driven to reset under the action of the tension spring, the pressure block is driven to move during the resetting of the inner rod, the push rod is released during the movement of the pressure block, after the push rod is released, the rack is driven to reset under the action of the return spring, thereby realizing the automatic reset function of the equipment, improving the production efficiency of the equipment, saving working time and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural sectional schematic diagram of the utility model.

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A in the middle figure.

[0020] Figure 3 For this utility model Figure 1 The enlarged schematic diagram of the structure of part B in the middle figure.

[0021] Figure 4 For this utility model Figure 1 The enlarged schematic diagram of the structure of part C in the middle figure.

[0022] In the figure: 1. saw table; 2. switching mechanism; 21. star gear; 22. planetary gear; 23. saw blade; 24. fixed frame; 3. feeding mechanism; 31. feeding block; 32. extrusion spring; 33. push plate; 34. inclined block; 4. detection mechanism; 41. outer rod; 42. vertical rod; 43. tension spring; 44. inner rod; 45. push rod; 46. block; 47. reset spring; 48. pressure block; 5. transmission mechanism; 51. push rod; 52. return spring; 53. rack; 54. gear; 6. indexing mechanism; 61. rotating shaft; 62. groove wheel; 63. transmission shaft; 64. turntable; 65. pawl; 66. ratchet; 67. dial; 68. lever. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1:

[0025] See also Figure 1 A saw blade detection device for a sliding table saw to prevent workpiece feeding from being obstructed comprises a saw table 1, a switching mechanism 2 is movably connected inside the saw table 1, the switching mechanism 2 comprises a star wheel 21, the outer ring of the star wheel 21 is meshingly connected with a planetary wheel 22 for driving the planetary wheel 22 to rotate, a saw blade 23 is fixedly connected to the back of the planetary wheel 22, a groove matching the saw blade 23 is provided on the top of the saw table 1 to facilitate the movement of the saw blade 23, and a fixed frame 24 is movably connected to the front of the planetary wheel 22 for driving the saw blade 23 to switch.

[0026] During the operation of the feeding mechanism 3, the workpiece is driven to feed to the right. When the resistance increases, the detection mechanism 4 is triggered to realize the function of automatically detecting the feeding resistance, thereby improving the production efficiency of the equipment; during the movement of the detection mechanism 4, the transmission mechanism 5 is used to trigger the dividing mechanism 6 to realize the power transmission of the detection mechanism 4 and improve the production efficiency of the equipment; during the operation of the dividing mechanism 6, the switching mechanism 2 is triggered to realize the functions of automatically replacing the saw blade 23 and energy saving and environmental protection.

[0027] Furthermore, the switching mechanism 2 is movably connected to a dividing mechanism 6 on the front side, and the dividing mechanism 6 includes a rotating shaft 61, the rear end of the rotating shaft 61 is fixedly connected to the fixed frame 24, and is used to drive the fixed frame 24 to rotate, the front end of the rotating shaft 61 is fixedly connected to a groove wheel 62, the middle part of the gear 54 is fixedly connected to a transmission shaft 63, the front end of the transmission shaft 63 is fixedly connected to a turntable 64, the front side of the turntable 64 is movably connected to a pawl 65, the outer ring of the pawl 65 is movably connected to a ratchet 66, the inside of the ratchet 66 is provided with a groove adapted to the pawl 65, and is used to drive the ratchet 66 to rotate, the back of the ratchet 66 is fixedly connected to a dial 67, the outer ring of the dial 67 is provided with a groove adapted to the groove wheel 62 to prevent collision, the top of the dial 67 is fixedly connected to a lever 68, and the inside of the groove wheel 62 is provided with a groove adapted to the lever 68, and is used to drive the groove wheel 62 to rotate.

[0028] The switching mechanism 2 is triggered during the operation of the dividing mechanism 6, so as to realize the functions of designated replacement of the saw blade 23 and energy saving and environmental protection; specifically, the rotation of the gear 54 drives the transmission shaft 63 to rotate, the rotation of the transmission shaft 63 drives the turntable 64 to rotate, the rotation of the turntable 64 drives the pawl 65 to rotate, the rotation of the pawl 65 drives the ratchet 66 to rotate, the rotation of the ratchet 66 drives the dial 67 to rotate, the rotation of the dial 67 drives the lever 68 to rotate, the rotation of the lever 68 drives the groove wheel 62 to rotate, the rotation of the groove wheel 62 drives the rotating shaft 61 to rotate, the rotation of the rotating shaft 61 drives the fixed frame 24 to rotate, the rotation of the fixed frame 24 drives the saw blade 23 to rotate, so as to realize the automatic replacement of the saw blade 23 and energy saving and environmental protection functions, thereby improving the production efficiency of the equipment.

[0029] Embodiment 2:

[0030] See also Figure 1-4 A saw blade detection device for a sliding table saw to prevent workpiece feeding from being obstructed comprises a saw table 1, a switching mechanism 2 is movably connected inside the saw table 1, the switching mechanism 2 comprises a star wheel 21, the outer ring of the star wheel 21 is meshedly connected with a planetary wheel 22 for driving the planetary wheel 22 to rotate, a saw blade 23 is fixedly connected to the back of the planetary wheel 22, a groove matching the saw blade 23 is provided on the top of the saw table 1 to facilitate the movement of the saw blade 23, a fixed frame 24 is movably connected to the front of the planetary wheel 22 to drive the saw blade 23 to switch, a feeding mechanism 3 is movably connected to the top of the saw table 1, the feeding mechanism 3 comprises a feeding block 31, a push plate 33 is movably connected to the right side of the feed block 31 through an extrusion spring 32, a groove matching the push plate 33 is provided on the top of the saw table 1 to install the push plate 33 to facilitate the movement of the push plate 33, and an inclined block 34 is fixedly connected to the bottom of the push plate 33.

[0031] The bottom of the feeding mechanism 3 is movably connected with a detection mechanism 4, which includes an outer rod 41, a vertical rod 42 is movably connected to the middle of the outer rod 41, and the top of the vertical rod 42 is movably connected to the feeding block 31 through a tension spring 43, which is used to tighten the outer rod 41 to facilitate the reset of the detection mechanism 4. The inner rod 44 is movably connected to the inner rod 44 inside the outer rod 41, and the inner rod 44 is fixedly connected to the vertical rod 42 to drive the inner rod 44 to move. A hole adapted to the inner rod 44 is provided inside the outer rod 41 for installing the inner rod 44 to facilitate the movement of the inner rod 44. A top rod 45 is fixedly connected to the left side of the outer rod 41, and the bottom of the top rod 45 is fixedly connected to the outer rod 41. The inner rod 44 is movably connected with a block 46, which is movably connected to the saw table 1 through a reset spring 47, and is used to drive the block 46 to reset. The bottom of the inner rod 44 is fixedly connected with a pressure block 48. The bottom of the saw table 1 is movably connected with a transmission mechanism 5, and the transmission mechanism 5 includes a push rod 51. The top of the push rod 51 is provided with an inclined surface matched with the pressure block 48, so that the pressure block 48 can drive the push rod 51 to move. The left end of the push rod 51 is movably connected to the saw table 1 through a return spring 52, and is used to drive the push rod 51 to reset. The right end of the push rod 51 is fixedly connected with a rack 53, and the top of the rack 53 is meshed with a gear 54.

[0032] The front side of the switching mechanism 2 is movably connected with a dividing mechanism 6, and the dividing mechanism 6 includes a rotating shaft 61. The rear end of the rotating shaft 61 is fixedly connected to the fixed frame 24 for driving the fixed frame 24 to rotate. The front end of the rotating shaft 61 is fixedly connected with a groove wheel 62. The middle part of the gear 54 is fixedly connected with a transmission shaft 63. The front end of the transmission shaft 63 is fixedly connected with a turntable 64. The front side of the turntable 64 is movably connected with a pawl 65. The outer ring of the pawl 65 is movably connected with a ratchet 66. The ratchet 66 has a groove matched with the pawl 65 inside, which is used to drive the ratchet 66 to rotate. The back side of the ratchet 66 is fixedly connected with a dial 67. The outer ring of the dial 67 has a groove matched with the groove wheel 62 to prevent collision. The top of the dial 67 is fixedly connected with a lever 68. The groove wheel 62 has a groove matched with the lever 68 inside, which is used to drive the groove wheel 62 to rotate.

[0033] Working principle: the feed block 31 drives the wood to move to the right through the push plate 33, and when encountering resistance, it drives the inclined block 34 to move to the left, and the outer rod 41 is driven downward during the movement of the inclined block 34, and the spring of the outer ring of the inner rod 44 is compressed during the downward movement of the outer rod 41, and the push rod 45 is driven downward during the movement of the outer rod 41, and the block 46 is driven to move to the left during the movement of the push rod 45, and the inner rod 44 is released during the movement of the block 46. After the inner rod 44 is released, it moves downward under the action of the spring, and the pressure block 48 is driven downward during the movement of the inner rod 44, and the push block 48 is driven to move to the right during the movement of the pressure block 48, and the rack 53 is driven to move during the movement of the push rod 51, and the gear 54 is driven to rotate during the movement of the rack 53, so as to realize automatic detection of resistance in the feeding process of the workpiece, improve equipment production efficiency, and save energy.

[0034] The gear 54 rotates, and the transmission shaft 63 rotates. The transmission shaft 63 rotates, and the turntable 64 rotates. The turntable 64 rotates, and the pawl 65 rotates. The pawl 65 rotates, and the ratchet 66 rotates. The ratchet 66 rotates, and the dial 67 rotates. The dial 67 rotates, and the lever 68 rotates. The lever 68 rotates, and the groove wheel 62 rotates. The groove wheel 62 rotates, and the shaft 61 rotates. The shaft 61 rotates, and the fixed frame 24 rotates. The fixed frame 24 rotates, and the saw blade 23 rotates, thereby realizing the automatic replacement of the saw blade 23 and the energy-saving and environmental protection functions, thereby improving the production efficiency of the equipment.

[0035] After the saw blade 23 is switched, the resistance of the wood is reduced, and the bevel block 34 is reset under the action of the extrusion spring 32. The outer rod 41 is released during the movement of the bevel block 34. After the outer rod 41 is released, it drives the inner rod 44 to reset under the action of the tension spring 43. During the resetting of the inner rod 44, it drives the pressure block 48 to move. During the movement of the pressure block 48, the push rod 51 is released. After the push rod 51 is released, it drives the rack 53 to reset under the action of the return spring 52, thereby realizing the automatic reset function of the equipment, improving the production efficiency of the equipment, and saving working time and production costs.

[0036] 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 saw blade detection device for preventing a workpiece from being obstructed in feeding on a sliding table saw, comprising a saw table (1), characterized in that: The saw table (1) is internally movably connected to a switching mechanism (2), the switching mechanism (2) comprising a sun wheel (21), the outer ring of the sun wheel (21) being meshingly connected to a planet wheel (22) for driving the planet wheel (22) to rotate, the back of the planet wheel (22) being fixedly connected to a saw blade (23), the top of the saw table (1) being provided with a groove adapted to the saw blade (23), and the front of the planet wheel (22) being movably connected to a fixing frame (24).

2. A saw blade detection device for preventing workpiece feeding from being blocked in a sliding table saw according to claim 1, characterized in that: The top of the saw table (1) is movably connected to a feed mechanism (3), the feed mechanism (3) comprises a feed block (31), the right side of the feed block (31) is movably connected to a push plate (33) via a compression spring (32), a groove matching the push plate (33) is provided on the top of the saw table (1), and an inclined block (34) is fixedly connected to the bottom of the push plate (33).

3. A saw blade detection device for preventing workpiece feeding from being blocked in a sliding table saw according to claim 2, characterized in that: The bottom of the feeding mechanism (3) is movably connected to a detection mechanism (4), the detection mechanism (4) comprises an outer rod (41), the middle of the outer rod (41) is movably connected to a vertical rod (42), the top of the vertical rod (42) is movably connected to the feeding block (31) via a tension spring (43), the inner part of the outer rod (41) is movably connected to an inner rod (44), the inner rod (44) is fixedly connected to the vertical rod (42), a hole matching the inner rod (44) is provided inside the outer rod (41), a top rod (45) is fixedly connected to the left side of the outer rod (41), a clamping block (46) is movably connected to the bottom of the top rod (45), the clamping block (46) is movably connected to the saw table (1) via a reset spring (47), and a pressing block (48) is fixedly connected to the bottom of the inner rod (44).

4. A saw blade detection device for preventing workpiece feeding from being blocked in a sliding table saw according to claim 3, characterized in that: The bottom of the saw table (1) is movably connected to a transmission mechanism (5), the transmission mechanism (5) comprising a push rod (51), the top of the push rod (51) is provided with an inclined surface adapted to the pressure block (48), the left end of the push rod (51) is movably connected to the saw table (1) via a return spring (52), the right end of the push rod (51) is fixedly connected to a rack (53), and the top of the rack (53) is meshedly connected to a gear (54).

5. The saw blade detection device for preventing workpiece feeding from being blocked in a sliding table saw according to claim 1, characterized in that: The switching mechanism (2) is movably connected to a graduation mechanism (6) at the front side, the graduation mechanism (6) comprising a rotating shaft (61), the rear end of the rotating shaft (61) is fixedly connected to a fixed frame (24), the front end of the rotating shaft (61) is fixedly connected to a groove wheel (62), the middle part of the gear (54) is fixedly connected to a transmission shaft (63), the front end of the transmission shaft (63) is fixedly connected to a rotating disk (64), the front side of the rotating disk (64) is movably connected to a ratchet (65), the outer ring of the ratchet (65) is movably connected to a ratchet wheel (66), a groove matching the ratchet (65) is provided inside the ratchet wheel (66), a dial (67) is fixedly connected to the back side of the ratchet wheel (66), the outer ring of the dial (67) is provided with a groove matching the groove wheel (62), a lever (68) is fixedly connected to the top of the dial (67), and a groove matching the lever (68) is provided inside the groove wheel (62).

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