TW418145B - A method of making knife - Google Patents

Abstract

This invention relates to a method of making knife, comprising: locating knife blade into a blade positioning mold, locating knife handle into a handle positioning mold, positioning the blade connecting end and handle connecting end to be in the predetermined distance, conducting electric current to both the blade positioning mold and handle positioning mold, and gradually moving two parts closer to cause point discharge and result welding both parts together. Accordingly, the knife blade and handle can be welded together by mechanical operation, so as to achieve the objective of increasing the production speed, assuring the product quality, and reducing the chance of hurting the operator.

Description

i 1 B 1 4 5 V. Description of the invention (丨) ~ —- _ The present invention relates to a method for manufacturing a knife body and a handle, and more specifically: Secondly, the blade is set on a blade positioning die, and the handle is set The handle of the knife makes the connecting end of the knife and the connecting end of the knife holder have a predetermined distance ^. The knife edge positioning mold and the knife holder positioning mold are energized, and the two are gradually attacked to cause the tip discharge to cause the two to be welded together. Please refer to the first picture, 'The current industrial setting for the combination of the blade (1 丄) and =, (1 2) is to first set the blade (1 1) and the shank /, and ^ 2) in the positioning mold. (1 〇) The two are fixed in position, the snail 7 knife (1 1) and the knife handle (1 2) are connected to the knife knife Ί 3) and the knife handle connection end (1 4), spaced apart. A predetermined distance; then (f welding itching (1 5)) with the electrode (16), then the blade connection end is completed 3) and the high temperature welding of the handle connection end (1 4) is combined with 'welding' and then the welding wire It is polished and polished to complete the connection of the knife. In the above-mentioned manufacturing method, when the welding of the blade and the knife a is performed by welding and welding rod, the welding step must be performed by human technical control, and the high heat and strong light generated during the argon welding process For the operation of Ji Kang, it is unavoidable to have a considerable degree of influence; and for the production cost of the industry, this manufacturing method must rely on skilled personnel to complete the connection system of the blade and the handle Design, and the production ambiguity is also limited by human factors, resulting in a natural increase in production costs, so it is not the most ideal manufacturing method.

Page 4 • μ b 1 4 · 5 'a V. Description of the invention (2) In the traditional manufacturing method, the welding of the blade and the shank by welding grabs and braces is generated during the nitrogen welding process. The high heat will cause the strength of the metal to be damaged (tempered). And from the traditional manufacturing method, it is not difficult to think that if you want to advance the speed and quality of the combined design of the blade and the holder and reduce the production cost, you must start with the method of connecting the blade and the holder to make the process automated and programmed. This will increase production speed, ensure product quality, and reduce harm to operators. The margin is 'the main purpose of the present invention is to provide a method for manufacturing a knife piece', which is to make the blade connecting end and the handle connecting end have a predetermined distance form. And make the two gradually approach and cause the tip discharge to fuse the two together. According to this, the mechanical handle can be used as the combination of the knife handle and the blade to achieve the purpose of increasing production speed, ensuring product quality and reducing harm to the operator. . A method for manufacturing a knife according to the present invention includes: A · Material taking step: making the knife material into a shape of a handle and a blade, wherein one end of the blade is a connecting end of the blade, and one end of the handle is a handle Connection end; B _ positioning step: wherein the positioning mold includes a blade positioning mold and a handle positioning mold, so that the blade of the knife and the material is set on the blade positioning mold; the handle of the blade is set on the handle positioning mold, and Make the blade end and the handle

4 I b 1 4 5 / V. Description of the invention (3) The connection end is a predetermined distance; C _ Welding step: power on the knife positioning mold and the tool holder positioning mold, according to the blade connection end and the tool holder There is a potential difference between the connecting ends, and the two are gradually approached to cause the tip discharge to fuse the two together. D. Demolding step: After the welding of the blade and the handle is completed, stop the power to the mold and open the positioning of the blade. The mold and the shank position the mold, and take out the completed knife blade connecting end and the shank connecting end. Regarding the technology, means, and other effects adopted by the present invention to achieve the foregoing objectives, a preferred and feasible embodiment is described in detail below with reference to the drawings. I believe that the above-mentioned objects, features, and other advantages of the present invention, You can get an in-depth and specific understanding. (I) Schematic part: The first diagram is a conventional operation diagram. The second diagram is an operation schematic diagram (1) of the embodiment of the present invention. The third diagram is an operation schematic diagram (2) of the embodiment of the present invention. The fourth diagram is an operation schematic diagram (three) of the embodiment of the present invention. (Two) · Figure number part: ·

V. Description of the invention (4) (10) Positioning mold (11) Knife edge (1 2) Knife handle (1 3) Knife edge connection end (1 4) Knife handle connection end (1 5) Welding torch (1 6) Welding rod (21) First blade positioning mold (22) Second blade positioning mold (3 1) First blade positioning mold (3 2) Second blade positioning mold (41) blade (42) blade handle (4 1 1) blade connection end (4 2 1) The end of the shank handle Shi Shiming issued this Exchange: The diagram includes four packages, three steps, and the second, the first method of the first method of the first method of the first method} 1 is a C-view blade outside the knife and its ^ | daily, so a set of 'cut-state profile knife'} 1: 1-I step C step blade knife and A 2 edge knife 2 out of 1 C, Handle knife and knife like 'a) use 3 minus 1 / [V _, 2 ends s 1 then 4 C with 1 shank blade {knife end and steel end with steel handle special} special use 1 End mining 1 for a while C's' __ Blade 3 Knife C 1 A C, a die blade, a knife with a handle type, including a knife, including a two-cut system, a tool, a mold, and an order The 2 series ... 2 steps C steps} and r-I, set 2}. (2 B tool 3 die W bit 3 4 end; 1) one—_) 2 2 4 4 (C end shank knot and handle} knife one—I and 4) / (V IX 77 one—t knife 4 the C 'end } Knot 2 with 4 blade C handle

V. Description of the invention (5) Please refer to the second figure, so that the blade (4 1) is set on the first blade positioning mold (2 1), and the handle (42) is set on the first blade positioning mold (3) 1), and the knife connecting end (41 1) and the handle connecting end (4 2 1) are in a form with a predetermined distance; this is the mold opening state, and the mold (2 2) is positioned at the second blade edge and When the first blade positioning mold (2 1) abuts, and the second tool holder positioning mold (32) and the first tool holder positioning mold (3 1) abut, it is in a closed state (as shown in the third figure). (Shown), when the mold is closed, the blade (4 1) and the handle (4 2) can be stably set in the mold; in addition, the mold in the embodiment of the present invention is a highly conductive copper material, which is reduced by increasing the conductivity. Contact resistance; C * Welding step: The electric charge is conducted between the blade positioning mold and the handle positioning mold, so a potential difference occurs between the blade connecting end (4 1 1) and the handle connecting end (4 2 1). When the mold is closed, the The blade connecting end (4 1 1) and the handle connecting end (42 1) are the closest conductors, as shown in the third figure, so the distance between the two is When approaching a predetermined distance, the two will generate heat due to the discharge of the tip, thereby consuming the energy of the charge; accordingly, the blade connection end (4 1 1) must be welded and combined with the handle connection end (4 2 1); D · Mold ejection step: After the welding of the blade (1 1) and the handle (12) is completed, stop the energization of the mold, open the mold (as shown in the fourth figure), and position the first blade to the mold (2 1 ) And the second blade positioning die

α I ts 1 4 5 Λ V. Description of the invention (6) __ The tool (22) is separated, and the first tool holder positioning mold (31) and the second tool 'handle positioning mold (3 2) are separated, and the blade connecting end ( 4 1 1) The knife parts that have been combined with the handle end (4 2 1) can be completed. Above, since the electrode is not used in the process of combining the blade (41) with the shank in the present invention, the welding line of the combined knife is smaller and less obvious than that produced by the argon welding method; and Not only is no strong light generated during the bonding process, the temperature it generates is also lower than that of the argon welding manufacturer. Please refer to the test report in Annex I, in which the test piece number C Κ 1 Α is used to weld the blade and the shank by the traditional welding method and the surface of the blade has been polished; and the test piece number CK 2 A is to adopt the present invention The bonding method, and the surface of the blade has been polished; From the data of the test report, it can be known that the maximum load value of CK 1 A's "welding part" is 39 Kg, and the maximum load of CK2A of the present invention is "welding part" The value is 50 Kg, and it can be seen that there is a huge difference in load value between the two, which is 1 1 K g. The difference in strength is very large. Therefore, the blades produced by the method of the present invention are significantly faster and more high-quality than traditional methods. In summary, the manufacturing method disclosed in the embodiment of the present invention, because the operation is implemented, the blade edge is set on the blade positioning die, and the handle is set on the handle positioning die, so that the blade connecting end and the handle connecting end Have a reservation

Page 9 V. Description of the invention (7) The type of distance is energized to the blade positioning mold and the tool holder positioning mold, and the two are gradually approached to cause the tip discharge to fuse the two together. The combination of manipulation as a knife handle and a blade achieves the purpose of increasing production speed, ensuring product quality, and reducing harm to operators. Therefore, the "availability of the industry" of the present invention should be beyond doubt; in addition, the embodiments of the present invention The disclosed structure has not been seen in publications before application, nor has it been used publicly. In addition, it has the fact that the above functions have been enhanced. Therefore, the "newness" and "progressiveness" of the present invention have been met. The application for an invention patent, please pray for examination and grant the patent at an early date. * Attachment 1: This is the load strength test report and X-ray photo of the blade of the present invention.

Page 10

Claims (1)

6. Scope of patent application 1 · A method for manufacturing a knife, including: A * Material extraction step: The knife is made into a shape of a shank and a blade, wherein one end of the blade is a connecting end of the blade and one end of the handle Is the connecting end of the handle; B · positioning step: the positioning mold includes a blade positioning mold and a handle positioning mold, so that the blade of the blade material is set on the blade positioning mold; the handle of the blade is set on the handle positioning mold And the blade connection end and the handle connection end are spaced a predetermined distance apart; C · welding step: energize the blade positioning mold and the handle positioning mold, according to the potential difference between the blade connection end and the handle connection end, And make the two gradually approach and trigger the tip discharge so that the two can be welded and integrated into one; D · mold ejection step: after the welding of the blade and the handle is completed, stop the power of the mold, and open the knife positioning mold and the handle positioning mold ， Remove the completed blade from the blade end and the handle end. Page U