CN210249497U - Mould for making chafing dish - Google Patents
Mould for making chafing dish Download PDFInfo
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- CN210249497U CN210249497U CN201920277456.0U CN201920277456U CN210249497U CN 210249497 U CN210249497 U CN 210249497U CN 201920277456 U CN201920277456 U CN 201920277456U CN 210249497 U CN210249497 U CN 210249497U
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Abstract
The mold for making the hot pot comprises a reverse drawing mold and a plurality of groups of drawing molds. The stretching dies comprise stretching male dies and stretching female dies, the male dies are cylindrical, and the female dies are annular. The reverse drawing die comprises a reverse drawing punch-die, the punch is provided with an extended reverse drawing punch coaxial ring body, the die is annular, and a core body is arranged in the axial direction. A blank holder can be arranged between the convex-concave mould. Also comprises a shaping and punching die. The method comprises the following steps: and sequentially extending each group of stretching male dies into the corresponding stretching female die circular holes to stretch the blanks in the same-direction and coaxial protrusions until the blanks are stretched to form forming protrusions. And the coaxial circular ring body of the counter-stretching male die corresponds to the circular hole of the female die, and the forming bulge is counter-stretched to form the pot body and the chimney. The chimney and the pot body are of an integral structure formed in one step, no welding seam is formed, the appearance is attractive, polishing is easy, leakage is not easy, and one pot can be firm and durable.
Description
Technical Field
The utility model belongs to the field of tableware food processing, in particular to a hot pot, a mold for manufacturing the hot pot and a method for manufacturing the hot pot by using the mold.
Background
The chimney of present charcoal chafing dish all is for the components of a whole that can function independently structure with the pot body, and chimney welded fastening has the welding seam pleasing to the eye on the pot body to there is the welding seam to be difficult to polish the light, if excessively polish then can appear the leak source, welding seam department still opens easily, if open welding damages or the leak source also is difficult to maintain appearing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a chimney and the pot body of charcoal chafing dish need welded fastening and the various problems that produce, provide the mould of chafing dish, preparation chafing dish, use the method of this kind of mould preparation chafing dish, the chimney and the pot body of this chafing dish are one shot forming's overall structure to do not do the mould of this kind of one shot forming's integral chafing dish and provide the mould of preparation this kind of chafing dish simultaneously and use this kind of mould to produce the preparation method of this kind of integral chafing dish to present.
The technical scheme is as follows:
a hot pot comprises a pot body.
A chimney which is in an integral structure with the pot body and is formed in one step is arranged on the flue in the middle of the pot body.
A filter screen is clamped at the inner bottom of the pot body.
The upper opening of the pot body is provided with a flat plate cover, and the upper outlet of the chimney is provided with a barbecue grate.
The mold for making chafing dish includes counter-drawing mold and several drawing molds.
Each group of stretching dies comprises a stretching male die and a stretching female die, the stretching male die is in a cylinder shape, and the stretching female die is in an annular shape.
The reverse stretching die comprises a reverse stretching male die and a reverse stretching female die.
The counter-drawing male die is provided with a counter-drawing male die coaxial ring body which extends downwards integrally. The reverse drawing concave die is annular.
And a blank holder corresponding to each group is arranged between each group of stretching male die and stretching female die.
A reverse drawing blank holder is arranged between the reverse drawing male die and the reverse drawing female die, and a core body is arranged on the circular hole of the reverse drawing female die in the axial direction.
The plurality of sets of drawing dies may be three sets.
The plastic die comprises a plastic male die and a plastic female die.
The shaping convex die is provided with a shaping convex die coaxial ring body which extends downwards integrally.
The shaping female die is provided with a central bulge, and the outer side of the central bulge is provided with a coaxial circular groove of the shaping female die.
Also comprises a punching die.
The preparation method of the hot pot comprises the following steps: comprises the following steps:
1) and sequentially stretching the stretching male die of each group of stretching dies into the corresponding stretching female die round holes to stretch the equidirectional coaxial bulges of the blanks in the corresponding passes until the blanks are stretched to manufacture axial forming bulges.
2) And the coaxial circular ring body of the counter-stretching male die corresponds to the circular hole of the counter-stretching female die, and the forming protrusion is subjected to counter-stretching together to form the pot body and the chimney.
3) And (6) shaping.
4) And punching holes at the upper end of the chimney.
And (4) performing three times of equidirectional stretching by using three groups of stretching dies, and performing annealing treatment in corresponding steps as required.
The advantages are that:
the chimney and the pot body of the hot pot are of an integral structure formed in one step, the integral structure is formed by adopting an integral stretching forming process, no welding line exists, the appearance is more attractive, the interior is easy to polish and bright, polishing leak points can not occur, the problem of welding line cracking does not exist, the hot pot further has multiple functions, and one pot has multiple functions and is used for boiling, stewing, frying and boiling. Has the advantages of high efficiency, energy saving, firmness, durability, complete functions and beautiful appearance. Is suitable for hotels, restaurants, dining halls and families, and has wide prospect.
Drawings
Fig. 1 is a schematic structural diagram of the chafing dish.
Fig. 2 is a structural schematic view of the chafing dish arranged on a base.
Fig. 3 is a schematic structural view of the first drawing die.
Fig. 4 is a schematic structural view of the second-time stretching die.
Fig. 5 is a schematic structural view of a third drawing die.
Fig. 6 is a schematic structural view of a reverse drawing die.
Fig. 7 is a schematic structural view of the shaping mold.
Fig. 8 is a schematic structural view of the punching die.
Fig. 9 is a process flow diagram.
FIG. 10 shows a conventional chafing dish, wherein a chimney and a pot body are welded.
The barbecue grill comprises a pot body 1, a flue 2, a chimney 3, a filter screen 4, a flat plate cover 5, a barbecue grate 6, a base 7, a charcoal grate 8, a dust removing opening 9, a first male die 10, a first female die 11, a first blank holder 12, a blank 13, a first blank holder support 14, a first protrusion 15, a second male die 16, a second female die 17, a second blank holder 18, a second protrusion 19, a third male die 20, a third female die 21, a third blank holder 22, a reverse-drawing male die 23, a reverse-drawing female die 24, a reverse-drawing blank holder 25, a reverse-drawing male die coaxial ring body 26, an inward flanging 27, a core body 28, a shaping female die 29, a shaping male die 30, a welding seam 31, a shaping female die coaxial circular groove 32, a male die 33, a punching female die 34, a punching protrusion 35 and a forming protrusion 36.
Detailed Description
Example 1
The hot pot comprises a pot body 1, wherein a chimney 3 which is in an integral structure and is formed with the pot body 1 in one step is arranged on a flue 2 in the middle of the pot body 1.
A filter screen 4 sleeved on the chimney 3 is clamped at the inner bottom of the pot body 1.
The filter screen 4 is arranged to prevent massive bottom materials from rolling in hot pot soup in a large range and being eaten, and the seasoning of the bottom materials to the hot pot soup is not influenced by the arrangement of the filter screen 4.
The filter screen 4 is arranged at the bottom of the pot body 1 and can be taken out when not used.
The upper opening of the pan body 1 is provided with a flat plate cover 5, and food, such as fried meat, can be fried on the flat plate cover 5 (with air holes).
A barbecue grate 6 is arranged at the upper outlet of the chimney 3.
Some food items, such as toasted potato chips, may be toasted on the grill 6. The barbecue grate 6 is arranged at the outlet of the chimney 2 and can be taken off when not used.
The flat plate cover 5 and the barbecue grate 6 can be both made of red copper, and the heat conduction speed is high.
The structure can realize multiple functions of one pot.
The chafing dish is arranged on a base 7, a charcoal grate 8 is arranged in the base 7, and the base 7 is also provided with an ash cleaning port 9.
Example 2
The mould for making the hot pot and the method for making the hot pot by using the mould are as follows:
the used dies are divided into a drawing die, a reverse drawing die, a shaping die and a punching die.
The drawing dies are divided into three groups of drawing dies. Each group of stretching dies comprises a stretching male die and a stretching female die, the stretching male die is in a cylinder shape, the stretching female die is in an annular shape, and a corresponding blank holder can be arranged between each group of stretching male dies and the stretching female die. The blank 13 is drawn using an appropriate set of drawing dies to produce axial shaped projections 36.
A disc-shaped copper ingot 13 was prepared.
1. Stretching the mold for the first time.
The first-time stretching die comprises a first male die 10, a first female die 11 and a first blank holder 12.
The first male die 10 is cylindrical, and the lower end is a circular plane.
The first female die 11 is circular.
The first blank holder 12 is circular.
The first male die 10 is arranged on the movable die side of the press, the first female die 11 is arranged on the fixed die side of the press, and the first blank holder 12 is fixed on the fixed position of the press through the first blank holder bracket 14.
Between the first female die 11 and the first blankholder 12 (located above) a blank 13 is provided.
The first stretching manufacturing method comprises the following steps:
the lower end of the first male die 10 enters the annular hole of the first blank holder 12 downwards, presses the blank 13, continues downwards, enters the annular hole of the first female die 11, and stretches the blank 13 downwards for the first time.
A first downward projection 15 is formed axially at the centre of the blank 13. As shown in the flow chart of fig. 10.
2. And (5) stretching the die for the second time.
And the second-time stretching die comprises a second male die 16, a second female die 17 and a second blank holder 18.
The second punch 16 is cylindrical (smaller in diameter than the first punch 10) and has a circular flat lower end.
The second female die 17 is circular.
The second blankholder 18 is circular.
The second male die 16 is arranged on the movable die side of the press, the second female die 17 is arranged on the fixed die side of the press, and the second blank holder 18 is fixed on the fixed position of the press through a second blank holder bracket.
Between the second female die 17 and the second blank holder 18 (located above) is the once stretched blank 13, with the first secondary projection 15 located downwards.
The second stretching manufacturing method comprises the following steps:
the lower end of the second male die 16 enters the annular hole of the second blank holder 18 downwards, presses the once-stretched blank 13, continues downwards, enters the annular hole of the second female die 17, and performs equidirectional second stretching on the once-stretched blank 13.
A larger second projection 19 is formed axially downwardly in the centre of the blank 13. As shown in the flow chart of fig. 10.
3. After the first two stretching treatments, the plasticity of the blank 13 is reduced, one annealing treatment needs to be carried out, the blank 13 stretched twice is annealed at the temperature of 300 ℃, the temperature is kept for 1 hour, and then the blank is put into cold water for cooling.
4. And stretching the die for the third time.
And the third-time stretching die comprises a third male die 20, a third female die 21 and a third blank holder 22.
The third punch 20 is in the shape of an axially hollow cylinder (the diameter is smaller than that of the second punch 16), and the lower end of the third punch is provided with a circular plane which is reduced downwards. The hollow core can reduce the weight.
The third female die 21 is circular.
The third blank holder 22 is circular.
The third male die 20 is arranged on the movable die side of the press, the third female die 21 is arranged on the fixed die side of the press, and the third blank holder 22 is fixed on the fixed position of the press through a third blank holder bracket.
The twice stretched blank 13 is arranged between the third female die 21 and the third blank holder 22 (located above), and the second bulge 19 is arranged downwards.
The third stretching preparation method comprises the following steps:
the lower end of the third male die 20 enters the annular hole of the third blank holder 22 downwards, presses the twice-stretched blank 13, continues downwards, enters the annular hole of the third female die 21, and performs third stretching in the same direction on the twice-stretched blank 13.
A forming projection 36 is formed axially at the center of the blank 13 to be larger than the second drawing. As shown in the flow chart of fig. 10.
After this stretching, the edge of the blank 13 may be subjected to a single rounding.
5. And (5) reversely drawing the die.
The reverse drawing die comprises a reverse drawing male die 23, a reverse drawing female die 24, a core body 28 and a reverse drawing blank holder 25.
The counter-drawing male die 23 is cylindrical at the upper part, an axial hole is formed in the middle (the weight can be reduced), a counter-drawing male die coaxial ring body 26 integrally extends downwards, and the counter-drawing male die coaxial ring body 26 becomes thinner gradually towards the lower edge.
The reverse drawing die 24 is circular.
The reverse drawing blank holder 25 is circular.
Corresponding protrusions and depressions are positioned between the reverse drawing female die 24 and the reverse drawing blank holder 25. The protrusions are located on the lower surface of the reverse draw binder 25.
The counter-drawing male die 23 is arranged on the moving die side of the press machine, the counter-drawing female die 24 is arranged on the fixed die side of the press machine, the core body 28 is arranged on the fixed die side of the press machine and is located in the central axial direction of the counter-drawing female die 24, the tip end of the counter-drawing female die faces upwards, and the counter-drawing blank holder 25 is fixed on the fixed position of the press machine through a counter-drawing blank holder support.
The blank 13 stretched three times is arranged between the reverse drawing female die 24 and the reverse drawing blank holder 25 (positioned above), and the forming bulge 36 is arranged upwards.
The reverse drawing manufacturing process comprises the following steps:
the coaxial ring body 26 of the reverse drawing male die at the lower end of the reverse drawing male die 23 enters the reverse drawing blank holder 25 downwards, presses the blank 13 which is drawn for three times, continues downwards, enters the ring hole of the reverse drawing female die 24, reversely draws the blank 13 which is drawn for three times, and presses the center of the forming bulge 36 downwards to the upper tip of the core body 28.
The pot body 1 which is opposite to the previous three times of stretching is axially formed in the center of the blank 13, and part of the forming bulge 36 which is pressed on the tip of the core body 28 is reserved in the center of the pot body 1, namely the chimney 3. As shown in the flow chart of fig. 10.
6. And (5) shaping the die.
The shaping die comprises a shaping male die 30 (the reverse drawing male die 23 in the step 5 can be used for saving materials) and a shaping female die 29.
The shaping convex die 30 is a cylindrical shape with the upper part and is a coaxial circular ring body of the shaping convex die extending downwards integrally, and the coaxial circular ring body of the shaping convex die becomes thinner gradually towards the lower edge. The middle part is provided with an axial hole, so that the weight can be reduced.
The shaping concave die 29 is in a cylindrical shape, the main section of the shaping concave die is in a W shape, the central bulge corresponds to the position of the inner surface of the chimney 3, and the outer side of the central bulge is provided with a shaping concave die coaxial circular ring groove 32 corresponding to the outer surface of the pot body 1.
The shaping male die 30 is disposed on the movable die side of the press, and the shaping female die 29 is disposed on the fixed die side of the press.
A blank 13 stretched for four times is arranged between the shaping convex die 30 and the shaping concave die 29, and the chimney 3 is arranged upwards.
Shaping and manufacturing processes:
the coaxial ring body of the shaping convex die at the lower end of the shaping convex die 30 enters the coaxial ring groove 32 of the shaping concave die 29 downwards, and the blank 13 stretched for four times is further shaped into the shape of the hot pot. As shown in the flow chart of fig. 10.
7. And (5) punching a die.
And the punching die comprises a punching male die 33 and a punching female die 34.
The punching male die 33 is cylindrical, and a punching bulge 35 is arranged at the lower end head.
The punch matrix 34 is circular.
The punching male die 33 is disposed on the movable die side of the press machine, and the punching female die 34 is disposed on the fixed die side of the press machine.
Between the punch 33 and the punch die 34, the shaped blank 13 is stretched four times.
The manufacturing process comprises the following steps:
the punching male die 33 is positioned above the chimney 3, and the punching female die 34 is positioned below the chimney 3.
And a punching bulge 35 at the lower end of the punching male die 33 downwards punches the top end of the chimney 3, then enters the punching female die 34, and punches an upper outlet of the chimney 2 at the top end of the chimney 3. Due to the upper chamfer of the inner round hole of the punching female die 34, the inner flanging 27 of the upper outlet of the chimney 2 is also manufactured. As shown in the flow chart of fig. 10. Cutting off all margin of the edge.
8. And expanding by using a rubber expansion mold. This is a known technique and will not be repeated.
The above processing and manufacturing processes need attention: the rigidity and hardness of the die need to meet requirements, otherwise, the die is easy to deform to cause uneven blank holding force, and the die is damaged due to insufficient hardness, and a Cr12 material is usually selected to manufacture the convex-concave die through quenching.
The blank holder and the die of the subsequent process should be carefully matched to the shape and size of the previous semi-finished product so that the material around the blank holder is uniformly pressed against the die surface to prevent wrinkling.
The radius (R1) of the circular ring hole of the first drawing die is larger, and the radius is gradually reduced in each time. The fillet radius of the ring hole of the die is calculated according to the relative thickness of the blank 13 and the relative thickness of the blank 13 (t is the initial thickness of the blank 13, and D is the initial diameter of the blank 13), so that R2=0.7R1, R3=0.7R2 and the like can be obtained. First stretch unilateral gap E =1.2 t.
The radius of the convex mould round angle is equal to or slightly smaller than the radius of the concave mould circular ring hole.
And when the blank holder is selected, calculating according to 100t/D, using the blank holder when the 100t/D is less than 1.5, or not using the blank holder, wherein the excircle fillet radius of the blank holder is equal to the corresponding fillet radius of the circular ring hole of the female die.
And (3) designing an inner flanging of an upper outlet of the chimney 2: typically a single side gap E =0.85t may be taken. The diameter D of the pre-punched hole and the height of the flanging are H, and D = D-2 (H-0.43 r-0.72 t). The drawing lubricant can adopt carving soft soap: water =1:10 (mass ratio made). The above-mentioned process considerations can be determined and adjusted by those skilled in the art according to the manual of the art based on the shape and processing method of the mold described in the present specification.
Claims (4)
1. The mould for making the hot pot is characterized in that: comprises a reverse drawing die and a plurality of groups of drawing dies;
each group of stretching dies comprises a stretching male die and a stretching female die, the stretching male die is in a cylinder shape, and the stretching female die is in an annular shape;
the reverse drawing die comprises a reverse drawing male die (23) and a reverse drawing female die (24);
the counter-drawing male die (23) is provided with a counter-drawing male die coaxial ring body (26) which extends downwards integrally; the reverse drawing concave die (24) is annular.
2. A mold for making chafing dish as claimed in claim 1, wherein: a blank holder corresponding to each group is arranged between each group of stretching male die and stretching female die;
a reverse drawing blank holder (25) is arranged between the reverse drawing male die (23) and the reverse drawing female die (24), and a core body (28) is arranged on the circular hole of the reverse drawing female die (24) in the axial direction.
3. A mold for making chafing dish as claimed in claim 1, wherein: the plurality of groups of stretching molds are three groups.
4. A mold for making chafing dish as claimed in claim 1, wherein:
the device also comprises a shaping die, wherein the shaping die comprises a shaping male die (30) and a shaping female die (29);
the shaping convex die (30) is provided with a shaping convex die coaxial ring body which extends downwards integrally;
the shaping female die (29) is provided with a central bulge, and the outer side of the central bulge is provided with a coaxial circular groove (32) of the shaping female die;
also comprises a punching die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277456.0U CN210249497U (en) | 2019-03-06 | 2019-03-06 | Mould for making chafing dish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277456.0U CN210249497U (en) | 2019-03-06 | 2019-03-06 | Mould for making chafing dish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210249497U true CN210249497U (en) | 2020-04-07 |
Family
ID=70010474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920277456.0U Expired - Fee Related CN210249497U (en) | 2019-03-06 | 2019-03-06 | Mould for making chafing dish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210249497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938588A (en) * | 2019-03-06 | 2019-06-28 | 沈阳智凯机械制造有限公司 | The production method of the mold and chafing dish of chafing dish and production chafing dish |
-
2019
- 2019-03-06 CN CN201920277456.0U patent/CN210249497U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938588A (en) * | 2019-03-06 | 2019-06-28 | 沈阳智凯机械制造有限公司 | The production method of the mold and chafing dish of chafing dish and production chafing dish |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 Termination date: 20210306 |
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| CF01 | Termination of patent right due to non-payment of annual fee |