TWM589631U - Replaceable finger joint blade device of woodworking machine - Google Patents

Abstract

A replaceable finger joint blade device for a woodworking machine, especially a finger joint knife for a woodworking machine is provided with a thickened portion, and a plurality of equally divided blade fixing portions are provided at a tangential direction of the outer periphery of the thickened portion. 1. There are at least two convex teeth on the lower part. The convex teeth are recessed with a knife seat, which is used to screw the blade set. The blade set corresponds to the two convex teeth. At least two blades are provided. When it suffers from wear and tear, it is only necessary to remove the screw and take out and replace the new blade set, which is both simple and cost-saving, and is characterized by it.

Description

Replaceable finger joint blade device for woodworking machine

The creation of a replaceable finger joint blade device for a woodworking machine is mainly applied to the technology of a replaceable blade for a finger joint knife of a woodworking machine.

In general, when two pieces of wood are joined, the two sides of the two pieces of wood must be cut into a V-shaped joint with a concave-convex interval configuration, so that the two pieces of wood can use these V-shaped joints with a concave-convex interval configuration Departments are connected together.

The structure of the finger joint knife currently seen on the market, please refer to the first picture: a stereo schematic view of the single-piece finger joint knife of the conventional style. As shown in the second picture: a three-dimensional combination schematic diagram of a conventional multi-piece finger joint knife. Its structure mainly lies in that the finger-joint knife 40 is roughly circular, and two shank welding parts 41 are protruded in the tangential direction on both sides, and two blades are embedded and welded on the two shank welding parts 41 42. A through hole 43 is inserted through the center of the finger joint knife 40, and a plurality of finger joint knives 40 can be stacked and locked into a whole, which is used as a joint edge for cutting wood, thereby forming a concave and a convex interval configuration A pointed V-shaped engaging convex portion and an inverted pointed V-shaped engaging concave portion.

However, in the practical application of the conventional conventional finger joint knife 40, there are at least the following two problems and shortcomings to be solved.

1. The blade 42 of the finger joint knife 40 is directly welded and fixed to the welding portion 41 of the handle, so when the blade 42 is worn, the entire finger joint knife 40 must be discarded. The value of the piece 41 is still lower than that of the finger joint knife 40, which is quite wasteful in actual use.

2. The thickness of the single-piece finger-joint knife 40 is thin. When several finger-joint knives 40 are stacked and locked into one, the flatness of the top and bottom surfaces of each finger-joint knife 40 is very high. Otherwise, several fingers will be joined. After the knives 40 are stacked, the cutting position of the blade 42 will have a deviation of high and low inclination. When processing wood, the matching precision of the pointed V-shaped joint convex portion and the inverted pointed V-shaped joint concave portion directly affects the two pieces The accuracy of the joining of the woods may even lead to the situation where the two pieces of wood cannot be joined.

The creator is currently engaged in the manufacture and design of related products. He has accumulated many years of practical experience and experience. In response to the existing problems and shortcomings of the finger joint structure seen on the market, he actively invests in the spirit of innovation and improvement. Woodworking machine finger joint blade device.

The new solution to the problem is the technical means applied and the effectiveness compared to the previous technology. The woodworking machine finger joint knife is provided with a thickened part, and a plurality of equally divided blade fixing parts are provided at the tangential direction of the thickened part. The blade fixing part is provided with at least two convex tooth parts, and the convex tooth part is concavely provided with a blade seat, which is used for screwing the blade group. The blade group corresponds to the two convex tooth parts and has at least two blades. When the blade is worn, it is only necessary to remove the screw and take out and replace the new blade set, which is simple and cost-effective, and has an improvement in efficiency.

The technical means applied in the new problem solving method 2 and the effectiveness of the previous technology are: the woodworking machine finger joint knife is provided with a thickened portion, and a plurality of equally divided blade fixing portions are provided at the tangential direction of the thickened portion. At least two above and below the blade fixing part The convex tooth part is concavely provided with a knife seat, which is used for screwing the blade group. The blade group corresponds to the two convex tooth parts. At least two blades are provided. When a plurality of finger joint knives are stacked , At least can reduce the number of finger-jointed knives by more than half, and after multiple finger-joined knives are stacked, the lower and lower tilt deviation value of the cutting position of the blade is smaller, so as to improve the accuracy of disposing the joints of a concave and a convex between two pieces of wood The degree makes the two pieces of wood more accurate when they are joined, and has an improvement in efficiency. It is the second achiever.

This creative part

10‧‧‧ finger joint knife

11‧‧‧Thickening

12‧‧‧Blade fixing part

13‧‧‧Convex tooth

131‧‧‧Curved arc part

132‧‧‧Vertical

14‧‧‧knife holder

141‧‧‧screw hole

142‧‧‧Dodge groove

143‧‧‧Chip groove

15‧‧‧Shaft hole

16‧‧‧Through hole

17‧‧‧Sleeve

20‧‧‧Blade set

21‧‧‧Fixed base

22‧‧‧eye hole

23‧‧‧ Blade

24‧‧‧fitting part

30‧‧‧Wood

31‧‧‧Sharp V-shaped convex part

32‧‧‧ladder joint recess

33‧‧‧Shaped V-shaped convex part

34‧‧‧Inverted V-shaped joint recess

P‧‧‧screw

A‧‧‧Gap

Habit part

40‧‧‧ finger joint knife

41‧‧‧Blade fixing part

42‧‧‧Blade

43‧‧‧Through hole

The first picture: is a three-dimensional schematic diagram of the traditional style.

The second picture is a three-dimensional schematic diagram of the traditional style.

The third picture is a three-dimensional schematic diagram of a multi-piece finger-joined knife in this creative embodiment.

The fourth picture is a three-dimensional exploded schematic view of a multi-piece finger-joined knife in the first embodiment of the present invention.

Fifth figure: This is a three-dimensional exploded view of a single-piece finger joint knife in the first embodiment of this creation.

Figure 6: This is a schematic view of the front plane combination of the single-piece finger joint knife in the first embodiment of this creation.

The seventh figure is a schematic diagram of the top cross-sectional combination of a single-piece finger joint knife in the first embodiment of this creation.

Figure 8: This is a three-dimensional schematic diagram of a multi-piece finger joint knife in the second embodiment of this creation.

The ninth picture: It is a three-dimensional exploded schematic view of a multi-piece finger joint knife in the second embodiment of the present creation.

The tenth picture: It is the schematic view of the front plane combination of the multi-piece finger joint knife in the second embodiment of this creation.

The eleventh figure is a three-dimensional exploded schematic view of the single-piece finger joint knife in the second embodiment of the present creation.

Figure 12: This is a schematic view of the front plane combination of the single-piece finger joint knife in the second embodiment of this creation.

The thirteenth picture: It is a schematic diagram of the top cross-sectional combination of the single-piece finger-joined knife in the second embodiment of the present creation.

Figure 14: This is a three-dimensional and partially enlarged schematic view of the second embodiment of the present invention when two pieces of wood are joined.

In order to make it easy for those who are familiar with this skill to understand the structure of this creation and the functional benefits that can be achieved, a specific embodiment is listed here, and the detailed description and description in conjunction with the drawings are as follows:

A replaceable woodworking machine finger joint blade device, please refer to the third and fourth figures: it is a three-dimensional assembly and three-dimensional exploded schematic view of a multi-piece finger joint knife in this creative embodiment. As shown in the fifth figure: it is a three-dimensional exploded schematic view of a single-piece finger joint knife in the first embodiment of the creation. And the sixth and seventh figures are schematic diagrams of the front plane combination and the top cross-section combination of the single-piece finger joint knife in the first embodiment of this creation. Including: finger joint knife 10 and blade set 20; among them:

The thickness of the finger-joint knife 10 is increased. The finger-joint knife 10 is provided with a thickened portion 11. Four symmetrical and symmetrical blade fixing portions 12 are protruded outward at a vertical tangent direction of the periphery of the thickened portion 11. At least two convex tooth portions 13 are provided on the upper and lower parts of the blade fixing portion 12. The convex tooth portion 13 is provided with a curved arc portion 131 and a vertical portion 132, and the vertical portion 132 is recessed with a straight knife The seat 14 is provided with a screw hole 141 on the plane of the tool holder 14 for fixing the blade set 20 with a screw P. The bottom edge of the tool holder 14 is provided with a dodge groove 142. The finger-joint knife 10 corresponds to the dodge An arc-shaped chip guide groove 143 is provided at the groove 142, and a shaft hole 15 is penetrated at the center of the finger joint knife 10, which is used for penetrating a transmission shaft and jointly joints a plurality of stacked fingers The knife 10 is combined into an appropriate processing length;

The blade set 20 is provided with a fixed base 21 corresponding to the blade holder 14, and the fixed base 21 is provided with a fisheye hole 22 corresponding to the screw hole 141 as a screw P For fixing the locking screw 21 of the fixed base 21 to the finger-joint knife 10, the blade set 20 corresponds to the two convex tooth portions 13 and protrudes outward with two blade edges 23, which correspond to the blade fixing portion 12 The fitting part 24 is used for fitting and fixing to the blade fixing part 12, the four sets of blades 23 are arranged in alignment, and when cutting off the joining edges of two pieces of wood 30, a plurality of sharp V-shaped joining convex parts can be formed (Not shown in the figure), a plurality of trapezoidal joint recesses (not shown) are formed between the plurality of joint convex portions.

The above-mentioned replaceable woodworking machine finger joint blade device, please refer to the eighth, ninth, and tenth figures: it is a schematic diagram of the three-dimensional combination, three-dimensional decomposition and front view plane combination of the multi-piece finger joint knife in the second embodiment of the present creation. As shown in the eleventh figure: it is a three-dimensional exploded schematic view of the single-piece finger joint knife in the second embodiment of the present creation. And the twelfth and thirteenth figures are shown as schematic diagrams of the combination of the front plane and the top cross-section of the single-piece finger joint knife in the second embodiment of the present invention. Including: finger joint knife 10 and blade set 20; among them:

The even-numbered blade fixing portion 12 of the finger joint knife 10 is provided with a gap A from the top surface, so that the odd-numbered blades 23 and the even-numbered blades 23 after the assembly of the four sets of blade sets 20 are dislocated to serve as a joining edge for cutting off two pieces of wood 30 At this time, a plurality of pointed V-shaped bonding convex portions 33 may be formed, and a plurality of inverted-pointed V-shaped bonding concave portions 34 are formed between the plurality of bonding convex portions 33.

The original creation combined by the structure of the above components is to provide a replaceable finger joint blade device for woodworking machines, in practical operation applications:

Please refer to the eleventh figure: This is a schematic diagram of the use state of the original replacement of worn blades. When the blade 23 of the blade set 20 is subject to wear, it is only necessary to remove the screw P Here, the damaged blade set 20 can be taken out, and then replaced with a new blade set 20, and the fixing base 21 of the new blade set 20 is locked and fixed to the blade holder 14 of the finger joint knife 10 by the screw P, at In actual use, it seems quite simple and easy and saves costs and costs.

Please refer to the fourteenth picture: it is a three-dimensional and partially enlarged schematic view of the second embodiment of the present invention when joining two pieces of wood. The finger joint knife 10 provided in this creation is provided with a thickened portion 11 so that the blade set 20 can be provided with two or more blade edges 23. When the traditional conventional finger joint knife 40 requires ten stacked locks to be integrated, this Only five pieces of finger joint knives 10 can be created. When the number of stacked finger joint knives 10 is smaller, the deviation value of the cutting position of the blade 23 after the finger joint knives 10 is stacked is smaller, thereby increasing two pieces of wood The precision of the sharp V-shaped engaging convex portion 33 and the inverted V-shaped engaging concave portion 34 is processed to make the bonding more accurate.

Based on the above, the creation department provides a replaceable woodworking machine finger joint blade device. After the actual production of the creator and the repeated operation test, it is confirmed that it can indeed achieve the expected functional benefits of the creation, but it is also the current It is the first creation in the world that has not yet been heard, and it has industrial use value. It is true that it has met the essential requirements for the utility and progress of new patents. According to the provisions of the Patent Law, it applies to the Jun Bureau for new patent applications.

10‧‧‧ finger joint knife

11‧‧‧Thickening

12‧‧‧Blade fixing part

13‧‧‧Convex tooth

131‧‧‧Curved arc part

132‧‧‧Vertical

14‧‧‧knife holder

141‧‧‧screw hole

142‧‧‧Dodge groove

143‧‧‧Chip groove

15‧‧‧Shaft hole

20‧‧‧Blade set

21‧‧‧Fixed base

22‧‧‧eye hole

23‧‧‧ Blade

24‧‧‧fitting part

P‧‧‧screw

Claims (7)

A replaceable finger joint blade device for a woodworking machine, comprising: a finger joint blade and a blade set; wherein: The thickness of the finger-jointed knife is increased by a thickened portion, and a plurality of equally-divided and symmetrical blade fixing portions protruding outward at the vertical tangent direction of the thickened portion are provided above and below the blade fixing portion There are two or more protruding teeth, the protruding teeth are recessed with a knife seat, and the knife seat is provided with a screw hole, which is used as a screw lock screw to fix the blade set; The blade set is provided with a fixed base corresponding to the blade base, and the fixed base is provided with a fisheye hole corresponding to the screw hole, as the screw is penetrated and the fixed base lock screw of the blade is fixed to the blade base For the purpose of the screw hole, the blade set corresponds to the convex tooth portion protruding outward with two or more blades. The replaceable woodworking machine finger joint blade device according to claim 1, wherein: the convex tooth portion is provided with a curved portion and a vertical portion. The replaceable woodworking machine finger joint blade device according to claim 1, wherein: the two or more blades correspond to the blade fixing portion with a fitting portion, which is fixed to the blade fixing portion as a fitting User. The replaceable woodworking machine finger joint blade device as described in claim 1, wherein: the bottom edge of the blade holder is provided with a dodge groove. The replaceable woodworking machine finger joint blade device according to claim 1, wherein: the finger joint blade corresponds to a circular arc-shaped chip guide groove provided at the blade group. The replaceable woodworking machine finger joint blade device as described in claim 1, wherein: the plural Two or more blades of each blade group are arranged in alignment. The replaceable woodworking machine finger-joined blade device as described in claim 1, wherein: the even-numbered blade fixing portion of the finger-jointed blade is provided with a gap from the top surface to allow two or more blades of the odd-numbered blade group to have an even number Two or more blades of the blade group are arranged in a misaligned manner.

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