Aluminum alloy composite plate strip foil welding device for heat exchanger

Abstract

The invention provides an aluminum alloy composite plate strip foil welding device for a heat exchanger, and relates to the technical field of foil welding. The aluminum alloy composite plate strip foil welding device for the heat exchanger comprises a material conveying supporting frame, a material conveying mechanism is arranged at the upper end of the material conveying supporting frame, a welding frame is fixedly connected to the upper end of the material conveying supporting frame, an electric telescopic rod is arranged on the inner side of the welding frame, a material dispersing mechanism is fixedly connected to the free end of the electric telescopic rod, and a pressing shell is fixedly connected to the lower end of the material dispersing mechanism. An air pressure mechanism is arranged on the inner side of the pressing shell, and a secondary pressure collecting column is arranged on the inner side of the pressing shell. According to the aluminum alloy composite plate strip foil welding device for the heat exchanger, the telescopic poking knife is arranged, so that the poking knife can pierce the foil on the upper layer, a welding material can enter the space between the two layers of foils, the foils on the two sides can be bonded through the welding material, the foils can be firmly welded, and the welding quality is improved. The problems that during foil welding, virtual connection is prone to occurring, welding is not firm, and falling is prone to occurring are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of foil welding, and specifically provides a welding device for aluminum alloy composite plate strip foils for heat exchangers. Background Art

[0002] A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet the specified process requirements, and is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to their operating processes, they can be divided into three categories: shell-and-tube type, mixed type, and regenerative type (or recuperative type); according to the compactness of their surfaces, they can be divided into two categories: compact type and non-compact type.

[0003] Through retrieval, Chinese Patent Publication No. CN220029231U discloses a composite foil transfer welding device. During the process of the composite current collector supplied by the composite current collector unrolling mechanism, the first metal foil supplied by the first metal foil unrolling mechanism, and the second metal foil supplied by the second metal foil unrolling mechanism being transmitted to the welding mechanism, a limiting mechanism limits the three to ensure that the composite current collector, the first metal foil, and the second metal foil are transmitted to the welding station of the welding mechanism according to a preset relative position relationship. Subsequently, the welding mechanism welds the composite current collector, the first metal foil, and the second metal foil into a composite foil, and finally the winding mechanism winds up the composite foil, thereby being able to reduce or even avoid the situation where any one of the composite current collector, the first metal foil, and the second metal foil has a transportation position deviation during transportation, resulting in a position deviation of the three, so as to ensure the welding quality.

[0004] When a heat exchanger is produced and processed, it is necessary to weld foils. Due to the thin thickness of the foils, the heat generated at the solder joints during welding is extremely likely to melt through the solder joints and form holes, resulting in incomplete foils. Moreover, when welding foils, there are problems such as easy virtual connection, insecure welding, and easy detachment. In addition, due to the thickness and shape of the foils, air is easily trapped between the two layers of foils, resulting in a large gap and affecting the welding effect. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a welding device for aluminum alloy composite plate strip foils for heat exchangers, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: An aluminum alloy composite plate and strip welding device for a heat exchanger, including a material transporting support frame, a material transporting mechanism is arranged at the upper end of the material transporting support frame, a welding frame is fixedly connected to the upper end of the material transporting support frame, an electric telescopic rod is arranged inside the welding frame, a material scattering mechanism is fixedly connected to the free end of the electric telescopic rod, a pressing shell is fixedly connected to the lower end of the material scattering mechanism, a wind pressure mechanism is arranged inside the pressing shell, a secondary pressing column is arranged inside the pressing shell, a linkage pressing piece is fixedly connected to the free end of the secondary pressing column, several groups of pressing cones are arranged on the lower surface of the pressing shell, a crack breaking component is arranged inside the pressing cone, a hot melting block is arranged inside the pressing cone, an extrusion disc is arranged inside the pressing cone, the extrusion disc is in sliding contact with the crack breaking component, the upper end of the extrusion disc is fixedly connected to the linkage pressing piece, a filling pipe penetrates through the center of the extrusion disc, the filling pipe is directly above the hot melting block, the filling pipe penetrates through the linkage pressing piece and is communicated with the material scattering mechanism, the filling pipe is communicated with the wind pressure mechanism, and an auxiliary extrusion plate is arranged at the lower end of the material transporting support frame.

[0007] Preferably, the material scattering mechanism includes a feeding pipe, a propulsion motor is arranged on the outer side of the feeding pipe, a feeding worm is fixedly connected to the output end of the propulsion motor, the feeding pipe is communicated with a material scattering cylinder, the feeding worm is inside the material scattering cylinder, a surplus material discharge groove is arranged at one end of the material scattering cylinder away from the feeding pipe, and through holes are arranged at the lower end of the material scattering cylinder, and the through holes are communicated with the filling pipe.

[0008] Preferably, the wind pressure mechanism includes a blower, the output end of the blower is communicated with a main pipe, several groups of branch pipes are arranged on both sides of the main pipe, and the branch pipes are communicated with the filling pipe.

[0009] Preferably, the pressing cone is in the shape of a pyramid-shaped hollow shell, the edges and corners of the outer surface of the pressing cone are provided with rounded corners, and through holes are arranged on the surface of the pressing cone for the extension and retraction of the crack breaking component.

[0010] Preferably, the crack breaking component includes a positioning shaft, a stabbing knife is rotatably connected to the surface of the positioning shaft, the overall shape of the stabbing knife is in the shape of "L", the lower end of the stabbing knife is arc-shaped and provided with a blade, and a reset elastic piece is arranged on the surface of the stabbing knife.

[0011] Preferably, the hot melting block is used for hot melting the welding filler, and the heating surface of the hot melting block is set as a spherical surface.

[0012] Preferably, the lower end of the extrusion disc is conical, and the extrusion disc slides and presses against the surface of the stabbing knife.

[0013] Preferably, the filling pipe includes a blanking pipe, an air inlet hole is arranged at the upper end of the blanking pipe, a sealing ring is arranged on the outer side of the air inlet hole, the sealing ring is communicated with the branch pipe, a one-way elastic piece is arranged inside the blanking pipe for blocking the upward flow of air, and a communicating shell is fixedly connected to the upper end of the blanking pipe, and the communicating shell is communicated with the through hole at the lower end of the material scattering cylinder.

[0014] Preferably, the auxiliary extrusion plate includes a supporting telescopic rod, which is fixedly connected to the material transporting support frame. The upper end of the supporting telescopic rod is fixedly connected with a lifting plate, and convex keys are arranged on the upper surface of the lifting plate. The convex keys cooperate with the pressing cone to extrude the aluminum foil.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. For the aluminum alloy composite plate strip and foil welding device for heat exchangers, by setting a retractable punching knife, the punching knife can pierce the upper layer of foil, enabling the welding material to enter between the two layers of foil, allowing the two-sided foils to adhere using the welding material, and firmly welding the foils, thus solving the problems of easy loose connection and easy detachment during foil welding.

[0017] 2. For the aluminum alloy composite plate strip and foil welding device for heat exchangers, the solder inside the material scattering cylinder is evenly dispersed by the feeding worm, the solder is melted by the hot melting block, and the spherical surface of the hot melting block makes the melted solder relatively easy to be dispersed. By setting a wind pressure mechanism to generate high-pressure air flow, the melted solder on the spherical surface of the hot melting block is blown along the punching knife to the punctured notch, enabling the solder to fill the notch position, making the upper and lower layers of solder adhere, and preventing the high-temperature components from contacting the foil, achieving the effect of welding without heating between the foils, and solving the problem that the heat of the solder joints during foil welding easily melts through the solder joints and causes holes.

[0018] 3. For the aluminum alloy composite plate strip and foil welding device for heat exchangers, by setting a pressing cone to extrude the foil, the two-sided foils can be fitted together, preventing the problem that the gap between the two layers of foils is too large to be welded. By setting an auxiliary extrusion plate to cooperate with the pressing cone for clamping, the two layers of foils can be closely fitted and the subsequent welding can be made more firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the position distribution of the overall structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the auxiliary extrusion plate of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the lifting plate of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the material scattering cylinder of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the main pipeline of the present invention;

[0025] Figure 7 Schematic diagram of the linkage tablet pressing structure of the present invention;

[0026] Figure 8 Schematic diagram of the pressing cone structure of the present invention;

[0027] Figure 9 Schematic diagram of the extrusion disc structure of the present invention;

[0028] Figure 10 Schematic diagram of the punching knife structure of the present invention.

[0029] In the figure: 1, material conveying support frame; 2, material conveying mechanism; 3, welding frame; 4, electric telescopic rod; 5, material scattering mechanism; 51, feeding pipe; 52, propulsion motor; 53, feeding worm; 54, material scattering cylinder; 55, residual material discharge groove; 6, pressing shell; 7, air pressure mechanism; 71, blower; 72, main pipeline; 73, branch pipeline; 8, secondary pressing column; 9, linkage tablet pressing; 10, pressing cone; 11, crack breaking component; 111, positioning shaft; 112, punching knife; 113, reset elastic sheet; 12, hot melt block; 13, extrusion disc; 14, filler pipe; 141, blanking pipe; 1411, air inlet hole; 142, sealing ring; 143, one-way elastic sheet; 144, communicating shell; 15, auxiliary extrusion plate; 151, support telescopic rod; 152, lifting plate. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0032] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication between two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0033] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0034] As Figures 1-10 shown, an aluminum alloy composite plate and strip welding device for a heat exchanger includes a material transporting support frame 1. A material transporting mechanism 2 is arranged at the upper end of the material transporting support frame 1. A welding frame 3 is fixedly connected to the upper end of the material transporting support frame 1. An electric telescopic rod 4 is arranged inside the welding frame 3. A material scattering mechanism 5 is fixedly connected to the free end of the electric telescopic rod 4. A pressing shell 6 is fixedly connected to the lower end of the material scattering mechanism 5. A wind pressure mechanism 7 is arranged inside the pressing shell 6. A secondary pressing column 8 is arranged inside the pressing shell 6. A linkage pressing piece 9 is fixedly connected to the free end of the secondary pressing column 8. A plurality of groups of pressing cones 10 are arranged on the lower surface of the pressing shell 6. A crack-breaking component 11 is arranged inside the pressing cone 10. The pressing cone 10 is in the shape of a pyramid-shaped hollow shell. The edges on the outer surface of the pressing cone 10 are provided with rounded corners to prevent piercing the foil. Through holes are arranged on the surface of the pressing cone 10 for the extension and retraction of the crack-breaking component 11. The pressing cone 10 can squeeze the foil, enabling the two layers of foil to be welded to fit together, so that the subsequent welding of the two layers of foil can be squeezed and adhered.

[0035] A melting block 12 is arranged inside the pressing cone 10. The crack-breaking component 11 includes a positioning shaft 111. A punching knife 112 is rotatably connected to the surface of the positioning shaft 111. The punching knife 112 is integrally in the shape of an "L". The lower end of the punching knife 112 is arc-shaped and provided with a blade. A reset elastic piece 113 is arranged on the surface of the punching knife 112. The crack-breaking component 11 can use the rotation and extension of the punching knife 112 to pierce the foil. By setting the lower end of the punching knife 112 into an arc-shaped depression, the solder can be guided into the pierced notch.

[0036] An extrusion disk 13 is arranged inside the pressing cone 10. The melting block 12 is used for melting the welding filler. The heating surface of the melting block 12 is set as a spherical surface. The melting block 12 can heat and melt the solder on the surface and can use the spherical surface above to enable the solder to be pumped and quickly pushed out by the air flow.

[0037] The extrusion disk 13 is in sliding contact with the crack-breaking component 11. The lower end of the extrusion disk 13 is conical. The extrusion disk 13 slides and presses against the surface of the punching knife 112. The extrusion disk 13 can descend to squeeze the punching knife 112 to rotate, and after rising, the reset elastic piece 113 can push the punching knife 112 to reset.

[0038] The upper end of the extrusion disc 13 is fixedly connected to the linkage pressing sheet 9. A filler pipe 14 penetrates through the center of the extrusion disc 13. The bulk material mechanism 5 includes a feed pipe 51. A propulsion motor 52 is arranged outside the feed pipe 51. The output end of the propulsion motor 52 is fixedly connected to a feed worm 53. The feed pipe 51 is communicated with a bulk material cylinder 54. The feed worm 53 is inside the bulk material cylinder 54. A surplus material discharge groove 55 is arranged at one end of the bulk material cylinder 54 away from the feed pipe 51. A through hole is arranged at the lower end of the bulk material cylinder 54, and the through hole is communicated with the filler pipe 14. The bulk material mechanism 5 can use the rotation of the feed worm 53 to convey the powder solder inside the bulk material cylinder 54 to the hole below the bulk material cylinder 54, and the excess solder is pushed out from the surplus material discharge groove 55.

[0039] The air pressure mechanism 7 includes a blower 71. The output end of the blower 71 is communicated with a main pipeline 72. A number of groups of branch pipelines 73 are arranged on both sides of the main pipeline 72. The branch pipelines 73 are communicated with the filler pipes 14. The air pressure mechanism 7 can convey air currents to the inside of each filler pipe 14.

[0040] The filler pipe 14 is directly above the hot melt block 12. The filler pipe 14 includes a blanking pipe 141. An air inlet hole 1411 is arranged at the upper end of the blanking pipe 141. A sealing ring 142 is arranged outside the air inlet hole 1411. The sealing ring 142 is communicated with the branch pipeline 73. A one-way elastic piece 143 is arranged inside the blanking pipe 141 for blocking the upward flow of air currents. The upper end of the blanking pipe 141 is fixedly connected to a communicating shell 144. The communicating shell 144 is communicated with the hole at the lower end of the bulk material cylinder 54. The filler pipe 14 can convey solder to fall on the surface of the hot melt block 12. At the same time, by using the one-way elastic piece 143, when the air current comes out from the inside of the sealing ring 142, it will not impact the solder above. During the process of being blown by the gas, the solder above is evenly conveyed to the inside of the communicating shell 144. After the blowing of the gas ends, the solder presses down the one-way elastic piece 143, so that the solder falls from the inside of the blanking pipe 141 and scatters on the surface of the hot melt block 12.

[0041] The filler pipe 14 penetrates through the linkage pressing sheet 9 and is communicated with the bulk material mechanism 5. The filler pipe 14 is communicated with the air pressure mechanism 7. An auxiliary extrusion plate 15 is arranged at the lower end of the material conveying support frame 1. The auxiliary extrusion plate 15 includes a support telescopic rod 151. The support telescopic rod 151 is fixedly connected to the material conveying support frame 1. The upper end of the support telescopic rod 151 is fixedly connected to a lifting plate 152. A convex key is arranged on the upper surface of the lifting plate 152. The convex key cooperates with the pressing cone 10 for extruding the aluminum foil. The auxiliary extrusion plate 15 can cooperate with the pressing cone 10 to clamp the foil material, so that the two sides of the foil material can be closely attached, and the two sides of the foil material can be closely welded.

[0042] In use, first stack the foil materials to be welded above the material transporting support frame 1. Transport the foil materials to below the welding frame 3 through the material transporting mechanism 2. Pre-place the powder welding filler into the material scattering cylinder 54 from the feeding pipe 51. Start the electric telescopic rod 4 to drive the descent of the material scattering mechanism 5, so that the pressing shell 6 drives the pressing cone 10 to approach and press the foil materials. At the same time, the supporting telescopic rod 151 drives the lifting plate 152 to rise, so that the convex keys on the surface of the lifting plate 152 cooperate with the pressing cone 10 to extrude the stacked foil materials, making the two layers of foil materials fit together. Start the electric telescopic rod 4 to drive the pressing cone 10 to rise by the height of one foil material. At the same time, start the secondary pressing column 8 to drive the linkage pressing piece 9 to descend, so that the extrusion disk 13 descends to extrude the crack-breaking assembly 11, making the punching knife 112 rotate to pierce the upper foil material. The extrusion disk 13 rises to withdraw the punching knife 112 from the foil material. At the same time, start the propulsion motor 52 to drive the feeding worm 53 to rotate, so that the powder solder uniformly enters the filler pipe 14 from the material scattering cylinder 54 and is dropped onto the surface of the hot melting block 12. The hot melting block 12 melts the solder. Generate an air flow by starting the air pressure mechanism 7, so that the air flow passes through the sealing ring 142 and the air inlet hole 1411 and is released from the material discharging pipe 141. The air flow blows the melted solder on the surface of the hot melting block 12, so that the solder is dispersed on the spherical surface of the hot melting block 12 and enters the punctured notch along the punching knife 112. After the solder enters the notch, it cools and welds the upper and lower foil materials.

[0043] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0044] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy composite plate strip and foil welding device for a heat exchanger, comprising a material transporting support frame (1), characterized in that: At the upper end of the material transporting support frame (1), there is a material transporting mechanism (2). At the upper end of the material transporting support frame (1), a welding frame (3) is fixedly connected. Inside the welding frame (3), there is an electric telescopic rod (4). The free end of the electric telescopic rod (4) is fixedly connected with a material scattering mechanism (5). The lower end of the material scattering mechanism (5) is fixedly connected with a pressing shell (6). Inside the pressing shell (6), there is a wind pressure mechanism (7). Inside the pressing shell (6), there is a secondary pressing column (8). The free end of the secondary pressing column (8) is fixedly connected with a linkage pressing piece (9). On the lower surface of the pressing shell (6), there are several groups of pressing cones (10). Inside the pressing cones (10), there is a crack-breaking component (11). Inside the pressing cones (10), there is a hot-melting block (12). Inside the pressing cones (10), there is an extrusion disc (13). The extrusion disc (13) is in sliding contact with the crack-breaking component (11). The upper end of the extrusion disc (13) is fixedly connected with the linkage pressing piece (9). A filler pipe (14) passes through the center of the extrusion disc (13). The filler pipe (14) is directly above the hot-melting block (12). The filler pipe (14) passes through the linkage pressing piece (9) and is connected to the material scattering mechanism (5). The filler pipe (14) is connected to the wind pressure mechanism (7). At the lower end of the material transporting support frame (1), there is an auxiliary pressing plate (15).

2. The welding device for aluminum alloy composite sheet and strip for heat exchanger according to claim 1, characterized in that: The material scattering mechanism (5) includes a feed pipe (51). Outside the feed pipe (51), there is a propulsion motor (52). The output end of the propulsion motor (52) is fixedly connected with a feeding worm (53). The feed pipe (51) is connected to a material scattering cylinder (54). The feeding worm (53) is inside the material scattering cylinder (54). At one end of the material scattering cylinder (54) away from the feed pipe (51), there is a surplus material discharge groove (55). At the lower end of the material scattering cylinder (54), there are through holes, and the through holes are connected to the filler pipe (14).

3. The aluminum alloy composite plate, strip and foil welding device for a heat exchanger according to claim 2, characterized in that: The wind pressure mechanism (7) includes a blower (71). The output end of the blower (71) is connected to a main pipe (72). On both sides of the main pipe (72), there are several groups of branch pipes (73). The branch pipes (73) are connected to the filler pipe (14).

4. A welding device for an aluminum alloy composite plate, strip and foil for a heat exchanger according to claim 1, characterized in that: The pressing cone (10) is in the shape of a pyramid-shaped hollow shell. The edges and corners on the outer surface of the pressing cone (10) are provided with rounded corners to prevent piercing the foil material. Through holes are provided on the surface of the pressing cone (10) for the extension and retraction of the crack-breaking component (11).

5. A welding device for an aluminum alloy composite plate strip and foil for a heat exchanger according to claim 1, characterized in that: The crack-breaking component (11) includes a positioning shaft (111). A stabbing knife (112) is rotatably connected to the surface of the positioning shaft (111). The overall shape of the stabbing knife (112) is in the shape of an "L". The lower end of the stabbing knife (112) is arc-shaped and provided with a blade. A reset elastic piece (113) is provided on the surface of the stabbing knife (112).

6. The aluminum alloy composite plate, strip and foil welding device for a heat exchanger according to claim 1, characterized in that: The hot-melting block (12) is used for hot-melting the welding filler. The heating surface of the hot-melting block (12) is set as a spherical surface.

7. A welding device for aluminum alloy composite plate strip and foil for heat exchanger according to claim 5, characterized in that: The lower end of the extrusion disc (13) is conical. The extrusion disc (13) is in sliding extrusion with the surface of the stabbing knife (112).

8. A welding device for an aluminum alloy composite plate strip and foil for a heat exchanger according to claim 3, characterized in that: The filler pipe (14) includes a blanking pipe (141). An air inlet hole (1411) is provided at the upper end of the blanking pipe (141). A sealing ring (142) is arranged outside the air inlet hole (1411). The sealing ring (142) is communicated with the branch pipe (73). A one-way elastic piece (143) is arranged inside the blanking pipe (141) to block the upward flow of air. A communicating shell (144) is fixedly connected to the upper end of the blanking pipe (141). The communicating shell (144) is communicated with the hole at the lower end of the bulk material cylinder (54).

9. A welding device for an aluminum alloy composite plate strip and foil for a heat exchanger according to claim 1, characterized in that: The auxiliary extrusion plate (15) includes a support telescopic rod (151). The support telescopic rod (151) is fixedly connected to the material transporting support frame (1). A lifting plate (152) is fixedly connected to the upper end of the support telescopic rod (151). Convex keys are arranged on the upper surface of the lifting plate (152). The convex keys cooperate with the pressing cone (10) to extrude the aluminum foil.

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