TWI532548B - Method for manufacturing pot and a pot manufacturing with the same - Google Patents

Description

Cookware manufacturing method and pot made using the same

The present invention relates to a pot making method and a pot made using the same.

The conventional pot includes a pot body, a pot bottom and a heat-conducting structure. The large-scale business pot has a large overall volume. If the pot is integrally formed by using a mold, the mold is of great size, in addition to the increase of the manufacturing pot. In addition to the difficulty, the manufacturing efficiency is poor and the cost is high, and the quality of the pot produced is rather poor.

In view of this, large-scale business pots are usually manufactured separately from the pot body, the bottom of the pot and the heat-conducting structure, and then the three are welded into one body. However, the heat-conducting structure is made of aluminum or aluminum alloy, and the heat-conducting structure is welded to the bottom of the pot. The process needs to be pressurized, and the pressurizing action will seriously deform the heat conducting structure and affect the heat conduction effect of the heat conducting structure.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a cookware manufacturing method and a cookware produced by the same, which have excellent structural strength of the heat-conducting structure, high manufacturing efficiency, low cost and good quality of the manufactured cookware.

In order to achieve the above object, the method for manufacturing the pot of the present invention comprises the following steps: preparing a mold: preparing a mold, the mold forming an upper mold cavity, a lower mold cavity and a pass The upper and lower mold cavities form a forming space, the passage is connected between the forming space and the outer space, the shape of the upper cavity corresponds to a heat conducting structure, and the shape of the lower cavity corresponds to a bottom of the pot; casting : injecting a molten metal liquid from the channel into the forming space, and after the molten metal liquid is cooled and solidified, integrally forming a combination of the bottom of the pot and the heat conducting structure; demolding: taking out a combination of the bottom of the pot and the heat conducting structure; Pot body forming: preparing a cylindrical pot body; welding: welding the combination of the pot bottom and the heat conducting structure to the pot body to form a pot.

In order to achieve the above object, the pot of the present invention comprises a pot body, a pot bottom and a heat conducting structure, wherein the pot bottom is disposed on the pot body and encloses a housing space with the pot body, the heat conducting structure is disposed at the bottom of the pot away from the pot One side of the accommodation space.

The pot manufacturing method of the invention utilizes a combination of a pot bottom and a heat conducting structure formed by the upper and lower mold holes of the mold, and then combines the combination of the bottom of the pot and the heat conducting structure with the pot body to form the pot, thereby integrally forming the pot. The combination of the bottom of the pot and the heat-conducting structure has good structural strength, so that the heat-conducting structure is not easily deformed, and the large-scale mold is not required in the manufacture of the pot, the manufacturing efficiency of the pot is improved and the manufacturing cost is lowered, and the quality of the pot is excellent.

10‧‧‧Molding

11‧‧‧上模穴

40‧‧‧ pot body

41‧‧‧welding line

111‧‧‧ Groove

12‧‧‧下模穴

13‧‧‧ channel

131‧‧‧First opening

132‧‧‧second opening

14‧‧‧Forming space

15‧‧‧ sand mold

16‧‧‧metal mold

20‧‧‧thermal structure

30‧‧‧ pot bottom

31‧‧‧ outer periphery

42‧‧‧ lip

43‧‧‧ inner wall

50‧‧‧ pots

51‧‧‧ accommodating space

60‧‧‧welding agent

S1‧‧‧ Preparation

S2‧‧‧ casting

S3‧‧‧ demoulding

S4‧‧‧ pot forming

S5‧‧‧ welding

1 is a flow chart of a method of manufacturing a pot of the present invention.

Figure 2 is a cross-sectional view showing the separation of a sand mold and a metal mold of the present invention.

Figure 3 is a cross-sectional view showing a sand mold and a metal mold synthetic mold of the present invention.

Figure 4 is a schematic illustration of the casting step of the present invention.

Figure 5A is a side elevational view of the combination of the bottom of the pan and the thermally conductive structure of the present invention.

Figure 5B is a top plan view of the combination of the bottom of the pan and the thermally conductive structure of the present invention.

Figure 6 is an exploded view of the combination of the pot body and the pot bottom and the heat conducting structure of the present invention.

Figure 7 is a perspective view of the pot of the present invention.

Figure 8 is a cross-sectional view of the pot of the present invention.

Fig. 8A is a schematic view showing the joint of the pot body and the bottom of the present invention.

The possible embodiments of the present invention will be described in the following, but are not intended to limit the scope of the present invention.

Referring to FIG. 1 to FIG. 8A, the present invention provides a method for manufacturing a pan comprising the following steps: preparing a material S1: Referring to FIG. 1 to FIG. 3, first, a mold 10 is prepared, and the mold 10 forms an upper mold hole 11 and a lower portion. a cavity 12 and a channel 13, the upper and lower cavity 11, 12 forming a forming space 14 communicating between the forming space 14 and the external space, the shape of the upper cavity 11 corresponding to a heat conducting structure 20 (see FIGS. 5A and 5B), the shape of the lower cavity 12 corresponds to a bottom 30 (see FIGS. 5A and 5B). Specifically, the upper cavity 11 is formed with a plurality of grooves 111, the lower die The hole 12 is a groove-like structure. Preferably, the mold 10 comprises a sand mold 15 and a metal mold 16, the sand mold 15 is formed with the upper mold cavity 11 and the passage 13 , and the passage 13 is connected between the upper mold cavity 11 and the outer space. Specifically, the channel 13 has a first opening 131 and a second opening 132. The first opening 131 communicates with the external space, and the second opening 132 communicates with the upper cavity 11. In this embodiment, the channel 13 The first opening 131 is located above the second opening 132 in a longitudinal direction from the top of the sand mold 15 to the top of the upper mold hole 11, and in other embodiments, The first opening 131 may also be provided on the side of the sand mold 15, and the second opening 132 is held at the top of the upper mold cavity 11. The metal mold 16 is provided with the lower mold cavity 12, and the metal mold 16 is preferably an iron mold of iron. The mold 10 is disposed with the sand mold 15 on the upper side and the metal mold 16 on the bottom, as shown in FIG. Show.

Casting S2: Referring to Figures 1 and 4, a molten metal liquid is injected from the channel 13 into the forming space 14, more specifically, the molten metal liquid is along the channel 13 under the influence of gravity. Flowing down into the forming space 14 and flowing around the surfaces of the upper and lower mold cavities 11, 12 (the flow direction is as indicated by the arrow in FIG. 4) until the forming space 14 is filled, to be in the molten state After the molten metal is solidified by cooling, a combination of the bottom of the pot 30 and the heat conducting structure 20 is integrally formed as shown in FIGS. 5A and 5B. Wherein, the plurality of concave grooves 111 of the upper mold cavity 11 allow the heat conducting structure 20 to be arranged in fins after being cooled and solidified. The heat conducting structure in the embodiment comprises a plurality of long ribs and a plurality of short ribs, as shown in FIG. 5B. It can be noted that in other embodiments, the heat conducting structure can be presented in other forms as long as the shape of the upper cavity 11 is changed. Further, the molten metal is preferably liquid aluminum or aluminum alloy.

Demolding S3: separating the sand mold 15 and the metal mold 16 so that the combination of the bottom 30 and the heat conducting structure 20 is taken out from the mold 10, wherein the sand mold 15 is separated from the metal mold 16 by a sand mold 15 is broken or otherwise separated from the metal mold 16 to remove the combination of the bottom 30 and the thermally conductive structure 20.

Pot body forming S4: preparing a cylindrical pot body 40, specifically, a metal sheet is crimped into a cylindrical shape, and then the joints on both sides of the metal sheet are welded to form the cylindrical pot body (welded seam after welding) A weld line 41 is formed, as shown in Figure 6, and the top of the metal sheet is then rolled outward to form a lip 42, as shown in Figures 6 and 8. Wherein the formation timing of the lip 42 may be in a metal piece It is crimped into a cylindrical shape, or the joints on both sides of the metal sheet are welded to form the cylindrical pot body 40.

Welding S5: A combination of the pot bottom 30 and the heat conducting structure 20 is welded to the pot body 40 to form a pot 50, as shown in FIG. In this embodiment, the pan bottom 30 includes an outer peripheral edge 31. The pan body 40 includes an inner wall surface 43. The outer peripheral edge 31 of the pan bottom 30 is welded to the inner wall surface 43 of the pan body 40 by a layer of soldering agent 60 and is located. The bottom of the pot body 40 is shown in Figures 6, 8 and 8A.

It should be noted that the pot forming step S4 is independent of any step before the welding step S5, so the pot forming step S4 may be any two steps before the preparation step S1 or before the welding step S5. Between the demolding step S3 and the welding step S5, it is not limited to the first description.

Referring to FIG. 7 , FIG. 8 and FIG. 8A , the present invention provides a pot 50 which is mainly manufactured by using the pot manufacturing method, and the pot 50 includes a pot body 40 and a pot bottom 30 . A heat-conducting structure 20 is disposed at the bottom of the pot body 40 and surrounds the pot body 40 with an accommodating space 51. The heat-conducting structure 20 is disposed on a side of the pot bottom 30 away from the accommodating space 51.

The pot manufacturing method of the present invention utilizes the combination of the integrally formed pot bottom and the heat conducting structure by the upper and lower mold cavities 11 and 12 of the mold 10, whereby the heat conducting structure 20 is not subjected to heavy pressure deformation during the manufacturing process.

The combination of the bottom of the pan and the heat-conducting structure is a one-piece shaper, whereby the combined structure of the bottom of the pan and the heat-conducting structure is good, so that the heat-conducting structure 20 is not damaged by the heavy space in the accommodating space 51 of the pan 50. Heavy pressure deformation.

Furthermore, the combination of the bottom of the pan and the heat-conducting structure is separately manufactured from the pot body 40, The pot 50 is then welded and formed, and the pot body 40 is a metal piece. Therefore, the pot 50 is manufactured without a large mold, which improves the manufacturing efficiency of the pot 50 and reduces the manufacturing cost, and is manufactured. The pot 50 is of excellent quality.

In addition, the sand material property of the sand mold can improve the flow effect of the molten metal liquid. However, if the mold is a sand mold as a whole, the accuracy of the bottom of the pot after the combination of the bottom of the pot and the heat-conducting structure is formed by the influence of the sand mold material. Still slightly insufficient (such as the surface is covered with fine pores and too rough), so the bottom of the pot needs further surface processing to achieve high precision standards. If the mold is entirely a metal mold, although there is an advantage of better forming precision, the metal mold is not favorable for the flow of the molten metal due to the material property, and if the molten metal liquid having a lower melting point is used, the molten metal liquid is easily caused. The phenomenon of retention or early solidification often causes the molten metal solution to not fill the forming space, so that the combination of the bottom of the pot and the heat-conducting structure cannot be completely formed, and the product is produced. Therefore, the casting mold of the preferred embodiment of the present invention is combined in such a manner that the sand mold is placed on the upper metal mold, so that the molten metal liquid is first injected from the channel located in the sand mold, and then flows from top to bottom under the influence of gravity. The flow rate and temperature are relatively uniform and stable, whereby the molten metal liquid can quickly and surely fill the forming space, thereby avoiding the phenomenon that the molten metal liquid is too low in melting point to cause liquid retention or early solidification. The combined quality of the bottom of the pan and the heat-conducting structure can be maintained stable, avoiding the occurrence of defective products, and the structure of the bottom 30 of the pan is fine and smooth, and the surface roughness is small, so that the high precision can be met.

20‧‧‧thermal structure

30‧‧‧ pot bottom

31‧‧‧ outer periphery

40‧‧‧ pot body

41‧‧‧welding line

42‧‧‧ lip

43‧‧‧ inner wall

Claims (6)

A cookware manufacturing method comprising the following steps: preparing a mold: preparing a mold, the mold forming an upper mold cavity, a lower mold cavity and a passage, the upper and lower mold cavities forming a forming space, the passage communicating with the forming space and Between the outer spaces, the shape of the upper mold cavity corresponds to a heat conducting structure, and the shape of the lower mold cavity corresponds to a bottom of the pot; casting: injecting a molten metal liquid into the forming space from the channel, and the molten metal liquid is to be poured After cooling and solidifying, the combination of the bottom of the pot and the heat conducting structure is integrally formed; demoulding: taking out the combination of the bottom of the pot and the heat conducting structure; forming the pot: preparing a cylindrical pot body, wherein in the pot forming step, A metal sheet is crimped into a cylindrical shape, and the joints on both sides of the metal sheet are welded to form the cylindrical pot body; welding: a combination of the pot bottom and the heat conducting structure is welded to the pot body to form a pot. The method of manufacturing a cookware according to claim 1, wherein the mold comprises a sand mold and a metal mold, the sand mold is formed with the upper mold cavity and the passage, and the passage is connected to the upper mold cavity, and the metal mold is provided. There is the lower mold cavity, and in the stocking step, the mold is placed with the sand mold on top and the metal mold on the bottom. The method of manufacturing a pot according to claim 2, wherein the metal mold is an iron mold. The method of manufacturing a pan according to claim 1, wherein in the pan forming step, the top of the metal piece is rolled outward to form a lip. The method of manufacturing a cookware according to claim 1, wherein the bottom of the pan includes an outer peripheral edge, the pan body includes an inner wall surface, and the outer periphery of the pan bottom is welded to the inner wall surface of the pan body. The utility model relates to a pot manufacturing method according to any one of claims 1 to 5, which comprises a pot body, a pot bottom and a heat conducting structure, wherein the pot bottom is arranged on the pot body and versus The pot body surrounds an accommodating space, and the heat conducting structure is disposed at a side of the bottom of the pot away from the accommodating space.