阅读说明：本技术 一种电热锅用电热管及其加工模具 (Electric heating tube for electric heating pot and processing die thereof ) 是由 周衍增 李新喜 张勇健 于 2021-09-15 设计创作，主要内容包括：一种电热锅用电热管及其加工模具,属于电热锅配件技术领域。包括电热管主体(1)以及设置在电热管主体(1)内的电热丝(3),其特征在于：所述的电热管主体(1)的顶部水平,电热管主体(1)的中部为由上至下宽度逐渐变窄的锥形,电热管主体(1)的底部为中部下凸的弧形。本电热锅用电热管使电热锅的热效率高,而且电热管主体方便与均热盘焊接,并且使电热管工作面与均热盘有最大面积的接触,底部与电热丝同轴,能够提高电热管的耐击穿性能；本加工模具对电热管进行冲压,使电热管工作面在上模和下模之间为尽可能大的平面,与均热盘有最大面积的接触,两侧为梯形边,底面与电热丝同轴,电热管加工方便,且加工出的电热管外形均一。(An electrothermal tube for an electrothermal pot and a processing mould thereof belong to the technical field of accessories of the electrothermal pot. Including electrothermal tube main part (1) and setting heating wire (3) in electrothermal tube main part (1), its characterized in that: the top of the electric heating tube main body (1) is horizontal, the middle part of the electric heating tube main body (1) is in a cone shape with the width gradually narrowed from top to bottom, and the bottom of the electric heating tube main body (1) is in an arc shape with the middle part protruding downwards. The electric heating tube is used for the electric heating pot, so that the heat efficiency of the electric heating pot is high, the main body of the electric heating tube is convenient to weld with the soaking disc, the working surface of the electric heating tube is in contact with the soaking disc in the largest area, and the bottom of the electric heating tube is coaxial with the electric heating wire, so that the breakdown resistance of the electric heating tube can be improved; the processing die is used for stamping the electric heating tube, so that the working surface of the electric heating tube is a plane as large as possible between the upper die and the lower die, the electric heating tube is in contact with the soaking disc in the largest area, the two sides of the electric heating tube are trapezoidal edges, the bottom surface of the electric heating tube is coaxial with the electric heating wire, the electric heating tube is convenient to process, and the processed electric heating tube is uniform in appearance.)

1. The utility model provides an electric heat pipe for electric heat pot, includes electrothermal tube main part (1) and sets up heating wire (3) in electrothermal tube main part (1), its characterized in that: the top of the electric heating tube main body (1) is horizontal, the middle part of the electric heating tube main body (1) is in a cone shape with the width gradually narrowed from top to bottom, and the bottom of the electric heating tube main body (1) is in an arc shape with the middle part protruding downwards.

2. The electric heating tube for electric cookers of claim 1, wherein: the two sides of the middle part of the electric heating tube main body (1) are inclined, so that the electric heating tube main body (1) is gradually narrowed from top to bottom.

3. A mold for manufacturing an electrothermal tube for an electric pan according to any one of claims 1 to 2, wherein: the electric heating tube punching device comprises an upper die (6) and a lower die (7), wherein the lower die (7) is arranged under the upper die (6), a groove for accommodating an electric heating tube main body (1) is formed in the top of the lower die (7), a tip punching device for punching the tip of the electric heating tube main body (1) is further arranged between the upper die (6) and the lower die (7), the bottom of the groove (701) is in the shape of a circular arc with the middle protruding downwards, and the upper portion of the groove is in the shape of a cone which is gradually narrowed from top to bottom.

4. The working mold according to claim 3, wherein: the end part stamping device comprises an upper insert (10) and a lower insert (11), wherein the upper insert (10) is installed on an upper die (6), the bottom of the upper insert (10) protrudes out of the upper die (6), the lower insert (11) is installed on a lower die (7), the top of the lower insert (11) is lower than the lower die (7), and the lower insert (11) and the corresponding upper insert (10) are arranged in a right-to-right mode.

5. The working mold according to claim 4, wherein: the top of the lower insert (11) is arc-shaped with an inward concave middle part, and the bottom of the upper insert (10) is also arc-shaped with an inward concave middle part.

6. The working mold according to claim 3, wherein: the bottom of the upper die (6) is arc-shaped with a convex middle part, and the top of the lower die (7) is arc-shaped with a concave middle part matched with the upper die (6).

7. The working mold according to claim 3, wherein: the device also comprises a guide device, and the guide device is arranged between the upper die (6) and the lower die (7).

8. The working mold as set forth in claim 7, wherein: the guide device comprises a guide column (13) arranged at the bottom of the upper die (6) and a guide hole arranged at the top of the lower die (7), and the lower end of the guide column (13) can slidably extend into the guide hole.

9. The working mold according to claim 3, wherein: the ejection device is arranged on the lower side of the lower die (7), an ejection part is arranged at the top of the ejection device, and the ejection part penetrates through the lower die (7) and then extends into the groove (701).

10. The working mold of claim 9, wherein: the ejection device comprises an ejection disc (8) and ejection rods (12), wherein the ejection rods (12) are arranged on the upper side of the ejection disc (8) to form the ejection parts, and a plurality of ejection rods (12) are arranged at intervals along the groove (701).

Technical Field

An electrothermal tube for an electrothermal pot and a processing mould thereof belong to the technical field of accessories of the electrothermal pot.

Background

The electric heating pot is a modern cooker capable of being processed by frying, steaming, boiling, rinsing, stewing and the like. The multifunctional cooking machine can cook food, can preserve heat, is clean and sanitary in use, has no radiation, saves time and labor, and is one of indispensable tools for modernization of housework. The electric heating pot realizes the heating through the electrothermal tube and the soaking dish of bottom usually, and the electrothermal tube needs to weld on the soaking dish, but because the electrothermal tube is circular usually, this contact area that leads to electrothermal tube and soaking dish is less, makes the electric heating pot little to the heating area of soaking dish, leads to the thermal efficiency of electric heating pot low, and because the contact area of electrothermal tube and soaking dish is little, leads to the welding degree of difficulty of electrothermal tube and soaking dish big in addition, and the electric heating pot drops from the soaking dish easily.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art, and provides the electric heating tube for the electric heating pot and the processing mould thereof, which have the advantages that the contact area between the electric heating tube main body and the soaking disc is large, the electric heating tube and the soaking disc are convenient to weld, and the thermal efficiency of the electric heating tube is high.

The technical scheme adopted by the invention for solving the technical problems is as follows: the electric heating tube for the electric heating pot comprises an electric heating tube main body and an electric heating wire arranged in the electric heating tube main body, and is characterized in that: the top of the electric heating tube main body is horizontal, the middle part of the electric heating tube main body is in a conical shape with the width gradually narrowed from top to bottom, and the bottom of the electric heating tube main body is in an arc shape with the middle part protruding downwards.

Preferably, both sides of the middle part of the electric heating tube main body are inclined, so that the electric heating tube main body is gradually narrowed from top to bottom.

The processing die of the electric heating tube for the electric heating pot is characterized in that: the electric heating tube punching device comprises an upper die and a lower die, wherein the lower die is arranged under the upper die, a groove for accommodating an electric heating tube main body is formed in the top of the lower die, a tip punching device for punching the tip of the electric heating tube main body is further arranged between the upper die and the lower die, the bottom of the groove is arc-shaped, the middle of the arc-shaped is convex downwards, and the upper portion of the groove is conical and gradually narrowed from top to bottom.

Preferably, the end part stamping device comprises an upper insert and a lower insert, the upper insert is mounted on the upper die, the bottom of the upper insert protrudes out of the upper die, the lower insert is mounted on the lower die, the top of the lower insert is lower than that of the lower die, and the lower insert and the corresponding upper insert are arranged in a right-to-right mode. The upper insert and the lower insert are matched, so that the end part of the electric heating tube main body can be punched, and the end part of the electric heating tube is bent downwards.

Preferably, the top of the lower insert is in the shape of an arc with an inward concave middle part, and the bottom of the upper insert is also in the shape of an arc with an inward concave middle part. The bottom of going up the insert and the top of inserting down are the arc of middle part indent, and are identical with the appearance of electrothermal tube main part tip, avoid causing the damage to the electrothermal tube tip.

Preferably, the bottom of the upper die is arc-shaped with a convex middle part, and the top of the lower die is arc-shaped with a concave middle part matched with the upper die. Go up the mould bottom and be the arc of middle part evagination, the top of lower mould is the arc of middle part indent, makes to go up mould and lower mould more stable to the punching press of electrothermal tube main part, and can guarantee that tip stamping device and electrothermal tube tip are adjusted well.

Preferably, the device further comprises a guide device, and the guide device is arranged between the upper die and the lower die.

Preferably, the guiding device comprises a guiding column arranged at the bottom of the upper die and a guiding hole arranged at the top of the lower die, and the lower end of the guiding column can slidably extend into the guiding hole. The guide shaft is matched with the guide sleeve to guide the upper die and the lower die, so that the upper die and the lower die are always kept aligned.

Preferably, the device further comprises an ejection device, the ejection device is arranged on the lower side of the lower die, an ejection part is arranged at the top of the ejection device, and the ejection part penetrates through the lower die and then extends into the groove. The ejection device is convenient for ejecting the punched electric heating tube out of the groove.

Preferably, the ejection device comprises an ejection disc and ejection rods, the ejection rods are mounted on the upper side of the ejection disc to form the ejection portions, and the ejection rods are provided with a plurality of rods at intervals along the grooves. The ejection rods are provided with a plurality of rods, so that the deformation of the electric heating tube can be avoided when the electric heating tube is ejected.

Compared with the prior art, the invention has the beneficial effects that:

this electrothermal tube main part of electrothermal tube for electrothermal pot's top level, the middle part narrows down gradually from top to bottom, and the bottom is middle part downwardly convex arc, can enough guarantee that the area of contact of electrothermal tube main part and soaking dish is big, the heat that makes the electrothermal tube main part send can give the soaking dish by the quick transfer, makes the thermal efficiency of electrothermal pot high, the electrothermal tube main part is convenient in addition and welds with the soaking dish, and make electrothermal tube working face and soaking dish have the contact of maximum area, the bottom is coaxial with the heating wire, can improve the resistant puncture performance of electrothermal tube.

The processing die is used for stamping the electric heating tube, so that the working surface of the electric heating tube is a plane as large as possible between the upper die and the lower die, the electric heating tube is in contact with the soaking disc in the largest area, the two sides of the electric heating tube are trapezoidal edges, the bottom surface of the electric heating tube is coaxial with the electric heating wire, the electric heating tube is convenient to process, and the processed electric heating tube is uniform in appearance.

Drawings

Fig. 1 is a schematic perspective view of an electrothermal tube for an electrothermal pot.

FIG. 2 is a sectional view of an electrothermal tube for an electrothermal pot.

Fig. 3 is a front cross-sectional view of the processing mold.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a perspective view of the upper mold.

Fig. 6 is a perspective view illustrating the operation of the eject plate and the eject lever.

In the figure: 1. the electric heating tube comprises an electric heating tube main body 2, an ejection column 3, an electric heating wire 4, magnesium oxide powder 5, an upper die base 6, an upper die 7, a lower die 701, a groove 8, an ejection disc 9, a lower die base 10, an upper insert 11, a lower insert 12, an ejection rod 13, a guide column 14 and a support column.

Detailed Description

Fig. 1 to 6 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 6.

An electric heating tube for an electric heating pot comprises an electric heating tube main body 1 and an electric heating wire 3 arranged in the electric heating tube main body 1, wherein the top of the electric heating tube main body 1 is horizontal, the middle part of the electric heating tube main body 1 is in a conical shape with the width gradually narrowed from top to bottom, and the bottom of the electric heating tube main body 1 is in an arc shape with the middle part protruding downwards. This electrothermal tube for electric heat pot's electrothermal tube main part 1's top level, the middle part narrows down gradually from top to bottom, and the bottom is middle part downwardly convex arc, can enough guarantee that electrothermal tube main part 1 is big with the area of contact of soaking dish, the heat that makes electrothermal tube main part 1 send can give the soaking dish by the rapid transfer, make the thermal efficiency of electrothermal pot high, electrothermal tube main part 1 makes things convenient for and the welding of soaking dish moreover, and make electrothermal tube working face and soaking dish have the contact of maximum area, the bottom is coaxial with the heating wire, can improve the resistant breakdown performance of electrothermal tube.

The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.

Specifically, the method comprises the following steps: as shown in FIGS. 1-2: the electric heating tube comprises an electric heating tube main body 1 and an electric heating wire 3 arranged in the electric heating tube main body 1, wherein the electric heating tube main body 1 is encircled into a ring shape, the end part of the electric heating tube main body 1 is bent downwards, the electric heating tube main body can avoid the interference on the welding between the electric heating tube main body 1 and a soaking disc, the electric heating tube main body 1 is convenient to wire, and the electric heating tube main body 1 is an aluminum tube. The electric heating wire 3 is arranged in the electric heating tube main body 1, the electric heating tube main body 1 is filled with magnesia powder 4, and the magnesia powder 4 has good heat conductivity and good insulating property.

The top of the electric heating tube main body 1 is horizontal, two sides of the electric heating tube main body 1 are inclined from top to bottom inwards gradually, the middle of the electric heating tube main body 1 is in a conical shape which becomes narrower gradually from top to bottom, the bottom of the electric heating tube main body 1 is in a circular arc shape with a downward convex middle, two sides of the bottom of the electric heating tube main body 1 are tangent to corresponding sides of the middle respectively, and the electric heating wire 3 is coaxially arranged with the bottom of the electric heating tube main body 1.

As shown in FIGS. 3-6: the invention also provides a processing die of the electric heating tube for the electric heating pot, which comprises an upper die 6 and a lower die 7, wherein the lower die 7 is arranged right below the upper die 6, the top of the lower die 7 is provided with a groove for accommodating the electric heating tube main body 1, and an end part stamping device for stamping the end part of the electric heating tube main body 1 is also arranged between the upper die 6 and the lower die 7. The processing die is used for stamping the electric heating tube, so that the working surface of the electric heating tube is a plane as large as possible between the upper die 6 and the lower die 7 and is in contact with the soaking disc in the largest area, the two sides are trapezoidal edges, the bottom surface is coaxial with the electric heating wire, the electric heating tube is convenient to process, and the processed electric heating tube is uniform in appearance.

This mold processing still includes upper die base 5, die holder 9, ejecting device and guider, and upper die base 5 is discoid, and the diameter on upper portion of upper die base 5 is greater than the diameter of lower part, and die holder 9 coaxial setting is under upper die base 5, and die holder 9 and 5 intervals of upper die base set up, and the diameter of the lower part of die holder 9 is greater than the diameter on upper portion, and the top of upper die base 9 is provided with the installing port, and ejecting device installs in the installing port. Go up mould 6 and lower mould 7 and all set up between upper die base 5 and die holder 9, go up mould 6 and the coaxial setting of upper die base 5, and the top of going up mould 6 links to each other with the bottom of upper die base 5, and lower mould 7 and the coaxial setting of die holder 9, and bolt detachable is passed through at the bottom of lower mould 7 and the top of die holder 9 and is connected.

The upper die 6 is disc-shaped, the lower die 7 is disc-shaped, the upper die 6 and the lower die 7 are arranged oppositely, the bottom of the upper die 6 is arc-shaped with a downward convex middle part, the top of the lower die 7 is arc-shaped with an inward concave middle part matched with the upper die 6, the top of the lower die 7 is provided with a groove 701 for accommodating an electric heating tube, and the groove 701 and the bottom of the upper die 6 are encircled to form a die cavity. The bottom of the groove 701 is a circular arc with a convex middle part, and the upper part is a cone which is gradually narrowed from top to bottom.

The end part stamping devices are provided with two groups, and the two groups of end part stamping devices are arranged between the upper die 6 and the lower die 7 and respectively stamp the end parts of the electric heating tubes.

The ejection device comprises an ejection disc 8 and an ejection rod 12, the ejection disc 8 is disc-shaped, the ejection disc 8 and the lower die holder 9 are coaxially arranged, the ejection disc 8 is installed in an installation opening of the lower die holder 9, and the top of the ejection disc 8 is lower than that of the lower die holder 9, so that the ejection disc 8 can lift between the lower die holder 9 and the lower die 7. The bottom of the mounting hole is provided with a through hole, the bottom of the ejection disc 8 is provided with an ejection column 2, the top of the ejection column 2 passes through the through hole and then is connected with the ejection disc 8, the ejection column 2 is connected with the ejection disc 8 through a bolt, the ejection column 2 is used for being connected with an ejection oil cylinder, and the ejection disc 8 is pushed to lift through the ejection oil cylinder. The ejector rod 12 is arranged on the upper side of the ejector plate 8 to form an ejector part, the ejector rod 12 is vertically arranged, the lower end of the ejector rod 12 is fixedly connected with the ejector plate 8, the upper end of the ejector rod passes through the lower die 7 and then extends to the bottom of the groove 701, and a plurality of ejector rods 12 are uniformly distributed along the groove 701 at intervals to avoid the deformation of the electric heating tube when the electric heating tube is ejected.

Be provided with support column 14 between lower die holder 9 and lower mould 7, support column 14 is vertical to be set up, and the bottom and the lower die holder 9 fixed connection of support column 14, the top is passed and is connected with the bottom of lower mould 7 after ejecting dish 8 to support lower mould 7, ejecting dish 8 is connected with support column 14 slidable. The two support columns 14 are symmetrically arranged on two sides of the lower die holder 9.

Each group of end stamping devices comprises an upper insert 10 and a lower insert 11, a through hole is formed in the upper die 6, the upper portion of the upper insert 10 is arranged in the through hole and is installed on the upper die 6, the bottom of the upper insert 10 extends out of the upper die 6, the bottom of the upper insert 10 is inclined upwards gradually along the direction far away from the middle of the electric heating tube, and the bottom of the upper insert 10 is arc-shaped with the concave middle. The lower insert 11 is arranged right below the corresponding upper insert 10, a mounting hole is formed in the lower die 7, the lower insert 11 is arranged on the lower die 7, the lower insert 11 is located in the mounting hole, the top of the lower insert 11 is lower than the top of the lower die 7, the top of the lower insert 11 is inclined upwards gradually along the direction close to the middle of the electric heating tube, the top of the lower insert 11 is arc-shaped, the middle of the lower insert 11 is concave inwards, and the lower insert 11 and the corresponding upper insert 10 are matched to punch the end of the electric heating tube.

The guider is including installing guide post 13 on last mould 6 and setting up the guiding hole on lower mould 7, and the vertical setting of guide post 13, the upper end of guide post 13 links to each other with the bottom of last mould 6, and the lower extreme slidable of guide post 13 stretches into in the guiding hole, and in this embodiment, guide post 13 has the symmetry to set up two in last mould 6 both sides, guiding hole and guide post 13 one-to-one.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.