Automatic production process of metal soup spoon

Abstract

The invention discloses an automatic production process for a metal soup spoon, and relates to the technical field of soup spoons. The automatic production process for a metal soup spoon, by manufacturing a tubular handle portion, has higher strength than an existing flat handle, and the tubular handle portion is not easy to be deformed during transportation and use. At the same time, a split spoon head and a tubular handle portion are adopted, and the spoon head can be stamped and stretched separately, which can not only avoid the problem that the interference between the handle and the mold leads to only shallow stretching of the spoon head and the inability to make a deeper hemispherical spoon head, but also facilitates the positioning and placement of round plates, and does not require manual holding of the handle for stamping and stretching, effectively avoiding safety hazards. The spoon head and the tubular handle portion are connected by a handle head precision casting, and the handle head precision casting is cast by casting, and is bent after molding, with a certain curvature, avoiding the existing trouble of bending the connection between the spoon head and the handle, and avoiding the situation that it is easy to break during the bending process.

Description

Technical Field

[0001] The invention relates to the technical field of soup spoons, in particular to an automatic production process of metal soup spoons. Background Art

[0002] Metal tableware is an indispensable necessity in our daily life. Currently, the metal tableware on the market includes soup spoons, shovels, etc.

[0003] A stainless steel tableware processing process with an application date of 2019.08.05 and an announcement number of CN112318061A, comprises the following steps: S1, punching out the head and handle of a spoon or fork as a whole on a stainless steel plate using a mold; S2, performing rough plane polishing; S3, stretching and shaping the head of the spoon or fork; S4, bending and polishing the head of the spoon or fork; S5, finely polishing the entire spoon or fork; S6, ultrasonic cleaning, drying, inspection and packaging. By performing arc chamfering on the edge contour of the mold, the edge of the prepared stainless steel tableware is smooth and easy to use, without the need for edge grinding, and the sharp edges are completely removed, thereby avoiding safety hazards during use.

[0004] There is also a method for producing stainless steel tableware with handles, with announcement number CN103817496A applied for on March 3, 2014, which includes the following steps: A. punching out the heads and handles of spoons and shovels as a whole on a stainless steel plate using a mold; B. performing rough flat polishing; C. performing vertical polishing; D. stretching and shaping the heads of spoons and shovels; E. polishing the heads of spoons and shovels; F. performing fine polishing on the whole; G. ultrasonic cleaning, drying, inspection and packaging. The heads and handles of the tableware with handles are punched out as a whole to form an integrated structure. The whole process can be completed with only one set of molds, which saves operating procedures, reduces welding processes, and is beneficial to the protection of the factory environment and the health of workers.

[0005] The above two production methods of spoons have the following problems: (1) The handle is a flat sheet material with weak strength and is easy to deform during transportation and use; (2) The head and handle of the spoon are integrally punched out from a stainless steel plate, and then the spoon head is punched and stretched to shape. During the punching and stretching process, the head and handle of the spoon are large in size and difficult to be well positioned and fixed for automatic stretching. Usually, they are stretched by hand, which not only has low work efficiency but also poses a safety hazard; (3) At the same time, since the head and handle of the spoon are integrally punched out from a stainless steel plate, when the connection between the handle and the spoon head is bent into a certain arc, it is easy to break during the processing process, and the strength of the connection after bending is weak, and it is also easy to break during use; (4) Since the handle and the spoon head are integrated, when the spoon head is punched and stretched, there is interference between the handle and the mold, and the spoon head can only be shallowly stretched, and a deeper hemispherical spoon head cannot be made. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the present invention provides an automatic production process for a metal soup spoon to solve the problems that a flat handle has weak strength, is easily deformed during transportation and use, and is stretched by hand, which not only has low work efficiency but also poses a safety hazard. The head and handle of the spoon are integrally punched out from a stainless steel plate. When the connection between the handle and the spoon head is bent into a certain arc, it is easy to break during the processing. The strength of the connection after bending is weak and it is also easy to break during use. Moreover, the head of the spoon can only be shallowly stretched, and a deeper hemispherical spoon head cannot be made.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic production process for a metal soup spoon, the metal soup spoon comprising a tubular handle, a tubular lining, a handle head precision casting, a spoon head and a rubber grip, the rubber grip having a plug-in end, the handle head precision casting being bent, the handle head precision casting having a first welding portion and a second welding portion, the production process comprising the following steps:

[0008] 1. Select a metal strip and punch out a circular plate through a punching die, and then use a punching and stretching die to punch and stretch the circular plate to obtain a hemispherical spoon head;

[0009] Second: a metal strip is selected and subjected to punching, stamping, bending and blanking by a first continuous die to obtain a tubular handle material, the tubular handle material having a linear seam, the seam of the tubular handle material is welded to obtain a tubular handle portion, the tubular handle portion having a first weld, the tubular handle portion having a large opening end and a small opening end, and the second weld portion is adapted to the size of the small opening end;

[0010] 3. Select a metal strip and obtain a tubular lining member by punching, stamping, bending and blanking through a second continuous die;

[0011] Fourth, a rubber grip with a plug-in end is injection molded by an injection mold;

[0012] There is no order of precedence for steps 1, 2, 3 and 4, and they can be performed simultaneously;

[0013] Fifth, cutting an arc groove on the outer edge of the hemispherical spoon head obtained in step 1, wherein the arc size of the arc groove matches the arc size of the first welding portion;

[0014] Sixth: Align the second welding part of the precision casting of the handle with the small opening end of the tubular handle part and then circumferentially weld to form a second weld;

[0015] Seven: placing the tubular lining member obtained in step three into the large opening end of the tubular handle portion to which the handle head precision casting is welded in step six and welding and fixing the handle to be polished;

[0016] 8. Polishing and grinding the first weld and the second weld of the handle to be polished to obtain a semi-finished handle;

[0017] Nine: Align the first welding part of the handle head precision casting on the semi-finished handle with the arc groove of the spoon head, weld and polish to obtain the semi-finished soup spoon;

[0018] 10: Apply glue to the inner wall of the tubular lining member in the large open end of the tubular handle of the semi-finished soup spoon and / or the outer wall of the plug-in end of the rubber handle, align the plug-in end of the rubber handle with the tubular lining member in the large open end of the tubular handle of the semi-finished soup spoon, insert it, and fix it by gluing to obtain the finished soup spoon.

[0019] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0020] The metal soup spoon of the present invention is made into a tubular handle portion, which is stronger than the existing flat handle. The tubular handle portion is not easy to deform during transportation and use. At the same time, a split spoon head and tubular handle portion are adopted, and the spoon head can be stamped and stretched separately, which not only avoids the problem that the handle and the mold interfere with each other and the spoon head can only be shallowly stretched, and a deeper hemispherical spoon head cannot be made, but also facilitates the positioning and placement of the circular plate material, and there is no need to manually hold the handle for stamping and stretching, which effectively avoids safety hazards. The spoon head and the tubular handle portion are connected by a handle head precision casting, and the handle head precision casting is cast by pouring. After molding, it is in a bent shape with a certain curvature, avoiding the existing trouble of bending the connection between the spoon head and the handle, and avoiding the situation where it is easy to break during the bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the metal soup spoon of the present invention before assembly;

[0022] Figure 2This is a schematic diagram of the structure of the metal soup spoon after assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure when a surplus material portion is provided on the precision casting of the handle of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the handle precision casting of the present invention after removing the excess material portion;

[0025] Figure 5 It is a schematic diagram of the top view of the structure of the tubular lining member formed on the metal strip of the present invention;

[0026] Figure 6 It is a schematic diagram of the front view structure of the tubular lining member formed on the metal strip of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the first lower mold of the present invention;

[0028] Figure 8 This is a schematic diagram of the first upper mold structure of the present invention;

[0029] Fig. 9 It is a schematic diagram of the molding structure of the tubular handle material on the metal strip of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the welding equipment of the present invention;

[0031] Fig.11 It is a schematic structural diagram of the first material taking mechanism, the first fixing assembly, the first vibrating material tray and the first discharging plate of the present invention;

[0032] Fig.12 It is a schematic diagram of the structure of the second material taking mechanism, the second vibrating material tray and the second material discharging plate of the present invention;

[0033] Fig.13 It is a schematic structural diagram of the third material taking mechanism, the third vibrating material tray and the third discharging plate of the present invention;

[0034] Fig.14 It is a schematic diagram of the structure of the second clamping assembly, the moving platform and the turning mechanism of the present invention;

[0035] Fig.15 This is a schematic diagram of the structure of the handle to be polished according to the present invention;

[0036] Fig.16 This is a schematic diagram of the structure of the semi-finished handle of the present invention;

[0037] Fig.17 It is a schematic structural diagram of the rotating fixing mechanism, the first grinding mechanism and the second grinding mechanism of the present invention;

[0038] Fig.18 It is a schematic diagram of the structure of the first grinding mechanism of the present invention;

[0039] Fig.19 It is a schematic diagram of the structure of the second grinding mechanism of the present invention;

[0040] Fig. 20 It is a schematic structural diagram of the first stamping part and the first lower module of the present invention;

[0041] Among them: 101, tubular handle; 1011, first weld; 1012, second weld; 102, tubular lining; 103, handle precision casting; 1031, first welding part; 1032, second welding part; 1033, first convex rib; 1034, welding ear; 1035, second convex rib; 1036, residual material; 104, spoon head; 105, rubber grip; 1051, plug-in end; 1, first lower mold; 110, discharge slot; 11, First punching hole; 12, second punching hole; 13, first lower module; 131, first groove; 132, first bending surface; 15, second lower module; 151, second groove; 18, third lower module; 181, third groove; 2, first upper mold; 21, first punching piece; 22, second punching piece; 23, first stamping piece; 231, second bending surface; 24, punching block; 25, second stamping piece; 28, third stamping piece; 3, second vibrating tray ; 31, second discharge plate; 4, third vibrating tray; 41, third discharge plate; 5, first material-retrieving mechanism; 6, first fixing mechanism; 61, third adjusting assembly; 62, first clamping assembly; 60, welding mechanism; 601, six-axis manipulator; 602, welding assembly; 7, second clamping assembly; 70, first vibrating tray; 701, first discharge plate; 8, second material-retrieving mechanism; 81, first transverse groove; 82, inclined groove; 83, bending edge; 84, interval part; 85, vertical groove; 86, second horizontal groove; 87, connecting section; 9, turning mechanism; 91, first motor; 92, fixing member; 10, third material taking mechanism; 20, rotating fixing mechanism; 30, first grinding mechanism; 307, first grinding belt; 309, first elastic member; 311, first top wheel; 40, second grinding mechanism; 407, second grinding belt; 409, second elastic member; 411, second top wheel; 50, rotating table; 80, moving table. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained in conjunction with specific embodiments below. However, the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without making any creative work all belong to the protection scope of the present invention.

[0043] like Figure 1-Figure 4As shown, the present invention provides an automatic production process for a metal soup spoon, the metal soup spoon comprises a tubular handle portion 101, a tubular lining member 102, a handle precision casting 103, a spoon head 104 and a rubber grip 105, the rubber grip 105 has a plug end 1051, the handle precision casting 103 is bent (formed by metal mold casting), the handle precision casting 103 has a first welding portion 1031 and a second welding portion 1032, and the production process comprises the following steps:

[0044] 1. Select a metal (stainless steel is used as an example here) material strip to punch out a circular plate material through a punching die, and then use a punching and stretching die to punch and stretch the circular plate material to obtain a hemispherical spoon head 104;

[0045] Second, a metal (stainless steel is used as an example here) material strip is selected and punched, stamped, bent and blanked by a first continuous die to obtain a tubular handle material, the tubular handle material has a straight seam, the seam of the tubular handle material is welded to obtain a tubular handle portion 101, the tubular handle portion 101 has a first weld 1011, the tubular handle portion 101 has a large opening end and a small opening end, and the second weld portion 1032 is adapted to the size of the small opening end;

[0046] 3. Select a metal (stainless steel is used as an example here) and subject the strip to punching, stamping, bending and blanking by a second continuous die to obtain a tubular lining member 102;

[0047] Fourth, a rubber grip 105 having a plug-in end 1051 is injection molded by an injection mold;

[0048] There is no order of precedence for steps 1, 2, 3 and 4, and they can be performed simultaneously;

[0049] Fifth, an arc groove is cut by laser on the outer edge of the hemispherical spoon head 104 obtained in step 1, and the arc size of the arc groove is adapted to the arc size of the first welding part 1031;

[0050] Sixth: align the second welding portion 1032 of the handle head precision casting 103 with the small opening end of the tubular handle portion 101 and then circumferentially weld to form a second weld seam 1012;

[0051] Seven: placing the tubular lining member 102 obtained in step three into the large opening end of the tubular handle portion 101 welded with the handle head precision casting 103 in step six and welding and fixing them to obtain the handle to be polished;

[0052] 8. Polishing and grinding the first weld 1011 and the second weld 1012 of the handle to be polished to obtain a semi-finished handle;

[0053] Nine: Align the first welding portion 1031 of the handle head precision casting 103 on the semi-finished handle with the arc groove of the spoon head 104, weld and polish to obtain a semi-finished soup spoon;

[0054] For the specific equipment structure and principle used for welding the semi-finished handle and the spoon head 104, please refer to the patent "An automatic welding workstation" (application number CN202323308581.9) previously applied for by the applicant to realize the automatic welding of the semi-finished handle and the spoon head 104.

[0055] Ten: Apply glue to the inner wall of the tubular lining member 102 in the large opening end of the tubular handle portion 101 of the semi-finished soup spoon and / or the outer wall of the plug end 1051 of the rubber grip 105, align the plug end 1051 of the rubber grip 105 with the tubular lining member 102 in the large opening end of the tubular handle portion 101 of the semi-finished soup spoon, and insert it, and then fix it by gluing to obtain a finished soup spoon;

[0056] For the specific equipment structure and working principle used for gluing and fixing the rubber handle 105 and the semi-finished soup spoon, please refer to the patent previously applied by the applicant, "A semi-automatic glue dispensing assembly machine for assembled tableware" (application number CN202420845971.5), which realizes the automatic gluing and assembly of the rubber handle 105 and the semi-finished soup spoon.

[0057] The metal soup spoon of the present invention is manufactured by manufacturing a tubular handle portion 101, which is stronger than the existing flat handle. The tubular handle portion 101 is not easy to deform during transportation and use. At the same time, the split spoon head 104 and the tubular handle portion 101 are adopted, and the spoon head 104 can be stamped and stretched separately, which can not only avoid the problem that the interference between the handle and the mold can only shallowly stretch the head of the spoon and cannot make a deeper hemispherical spoon head 104, but also facilitate the positioning and placement of the round plate material, and there is no need to manually hold the handle for stamping and stretching, which effectively avoids safety hazards. The spoon head 104 and the tubular handle portion 101 are connected by the handle head precision casting 103, and the handle head precision casting 103 is cast by casting. After molding, it is bent and has a certain curvature, avoiding the existing trouble of bending the connection between the spoon head 104 and the handle, and avoiding the situation that it is easy to break during the bending process;

[0058] By providing an arc groove on the spoon head 104 , the contact and fitting area between the handle precision casting 103 and the spoon head 104 , namely the welding area, can be increased as much as possible, thereby enhancing the connection strength between the spoon head 104 and the handle precision casting 103 after welding.

[0059] like Figure 1As shown, the radius of the arc groove is 18mm-25mm, and the maximum vertical distance from the top surface of the spoon head 104 to the arc groove is 7mm-10mm. By opening the arc groove on the spoon head 104, its curvature is adapted to the curvature of the first welding portion 1031 of the handle head precision casting 103, the lateral bending force at the weld after welding can be increased, thereby enhancing the strength of the spoon head 104 and the handle head precision casting 103, and avoiding the problem that the connection between the spoon head 104 and the handle is easy to break during transportation or use after the existing spoon is produced. When the radius of the arc groove is greater than 25mm or the maximum vertical distance from the top surface of the spoon head 104 to the arc groove is greater than 10mm, it will cause waste of material. When the radius of the arc groove is less than 18mm or the maximum vertical distance from the top surface of the spoon head 104 to the arc groove is less than 7mm, the welding area of ​​the spoon head 104 and the handle head precision casting 103 cannot be guaranteed, that is, the connection strength of the spoon head 104 and the handle head precision casting 103 after welding cannot be guaranteed.

[0060] The hemispherical spoon head 104 is obtained by punching the circular plate through the third continuous die. The third continuous die includes a plurality of third lower dies and a third upper die (not shown) distributed in a linear manner. A spherical depression is provided on the top surface of each third lower die. The depth of each spherical depression gradually deepens along the linear distribution direction of the third lower die. The deepening amount each time is 1 / 9-1 / 5 of the radius of the circular plate (when the deepening amount each time is greater than 1 / 5 of the radius of the circular plate, cracks are likely to appear. When the deepening amount each time is less than 1 / 9 of the radius of the circular plate, the number of third lower dies will be increased, and the die cost will be increased). A spherical protrusion is provided on the bottom surface of each third upper die to match the spherical depression of the third lower die opposite thereto (the movement of the circular plate can be transferred to the next third lower die in sequence by the manipulator after being adsorbed by the suction cup, thereby realizing continuous automatic stamping and stretching of the circular plate);

[0061] By setting the spherical concave depth of the third lower die to gradually deepen along the linear distribution direction of the third lower die, each stamping and stretching gradually deepens the circular plate material to finally form a hemispherical spoon head 104. Through multiple step-by-step stamping and stretching, the stress of the material during the deformation process can be dispersed, stress concentration can be reduced, and cracks caused by excessive strain can be avoided. Multiple stamping can more accurately control the strain rate of each stamping, which is helpful to improve the plasticity of the material and reduce damage accumulation. Compared with the existing production process, it can not only effectively solve the problem of product molding cracking in the existing technology and improve the product molding quality, but also the entire process is automated and the production efficiency is high.

[0062] like Figure 4 As shown, first convex ribs 1033 and welding ears 1034 are symmetrically arranged on both sides of the periphery of the first welding portion 1031 of the handle precision casting 103, and second convex ribs 1035 are arranged on the periphery of the second welding portion 1032;

[0063] The first convex rib 1033 and the second convex rib 1035 are provided to compensate for the thickness of the weld material during the welding process, so that the weld is naturally convex after cooling, which can effectively avoid the weld from being concave, reduce the difficulty of subsequent polishing, and make the entire welding area more easily cut and smooth during the polishing process, and finally achieve welding marks that are difficult to detect with the naked eye, so that the spoon head 104 and the handle head precision casting 103, as well as the handle head precision casting 103 and the tubular handle portion 101 are smooth and consistent after welding and polishing;

[0064] Similarly, by setting the welding ear 1034, the welding seams at the starting point and the end point of the welding between the first welding part 1031 and the arc groove can be compensated, so that after the first welding part 1031 of the handle head precision casting 103 and the spoon head 104 are aligned with the arc groove and fitted, the welding ear 1034 is higher than the plane of the spoon head 104, so that the weld seam is naturally convex after cooling, which can effectively avoid the weld seam from being concave, reduce the difficulty of subsequent polishing treatment, and make the welding area at this place more easily cut and flat during the polishing process, finally achieving welding marks that are difficult to detect with the naked eye, while ensuring the dual improvement of welding strength and aesthetics.

[0065] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig. 20 As shown, the cross-sectional size of the tubular handle portion 101 gradually increases from one end to the other end, and the tubular handle portion 101 is unfolded into an isosceles trapezoid. The first continuous mold includes a first lower mold 1 and a first upper mold 2;

[0066] The top surface of the first lower mold 1 is provided with a first notch hole 11, a second notch hole 12, a first groove 131, a second groove 151, a third groove 181 and a discharge slot 110 in sequence along its length direction. At least four first notch holes 11 are symmetrically and parallelly arranged along the center line of the length direction of the top surface of the first lower mold 1 (four are taken as an example here), and two second notch holes 12 are obliquely and symmetrically arranged along the width direction of the first lower mold 1. A first lower module 13 is arranged in the first groove 131, and one side of the top surface of the first lower module 13 is set as a first bending surface 132 bent downward. An n-shaped second lower module 15 is arranged in the second groove 151, and the height of the top surface of the second lower module 15 gradually decreases from one end to the other end. A third lower module 18 is arranged in the third groove 181, and a U-shaped groove is arranged on the top surface of the third lower module 18. The depth of the U-shaped groove gradually deepens from one end to the other end. The notches at both ends of the U-shaped groove are set as arcs that expand outward, so as to facilitate the smooth entry of the two ends of the bottom of the subsequent n-shaped material strip into the U-shaped groove.

[0067] The bottom surface of the first upper mold 2 is provided with a first punching piece 21, a second punching piece 22, a first stamping piece 23, a second stamping piece 25, a third stamping piece 28 and a punching block 24 in sequence along its length direction. The first punching piece 21 and the second punching piece 22 are respectively the imitations of the first punching slot hole 11 and the second punching slot hole 12. The bottom of the first punching piece 23 is provided with a second bending surface 231 adapted to the first bending surface 132. The bottom of the second punching piece 25 is provided with an imitation groove adapted to the second lower die block 15. The bottom surface of the third punching piece 28 is provided with a stamping groove adapted to the curvature of the top surface of the second lower die block 15. When the third punching piece 28 and the third lower die block 18 are molded together, a cavity adapted to the size of the outer wall of the tubular handle material is formed;

[0068] Among them, the first punching piece 21 and the first punching hole 11 are used to punch out the first transverse groove 81 on the long strip of metal material, and a connecting spacer 84 is provided between two adjacent first transverse grooves 81 on the same side of the material strip. The second punching piece 22 and the second punching hole 12 are used to punch out the inclined groove 82 on the long strip of metal material strip to obtain an isosceles trapezoidal plate, and each of the two ends of the inclined groove 82 is respectively connected to a first transverse groove 81. The first lower module 13 and the first stamping part 23 are used to punch the two oblique sides of the isosceles trapezoidal plate to form a bending edge 83. The angle between the bending edge 83 and the horizontal plane of the material strip is not less than 30°. When it is less than 30°, the two oblique sides of the isosceles trapezoidal plate cannot be well enclosed when the third lower module 18 and the third stamping part 28 are subsequently stamped.

[0069] The metal strip can be pulled by an existing traction machine and fed in an equidistant stepping manner. The strip first passes through four first punching holes 11, and the first upper mold 2 is driven downward by a driving cylinder, thereby driving the first punching piece 21 to move downward, punching out four first transverse grooves 81 (such as Fig. 9 After the first upper mold 2 moves up, the material strip continues to be pulled and moved, so that the two ends of the first transverse groove 81 of the material strip are respectively located above a second punching hole 12, and the first upper mold 2 is driven downward by the driving cylinder to punch out an inclined groove 82 on the material strip to obtain an isosceles trapezoidal plate (such as Fig. 9 (B in the middle);

[0070] Then the material strip is pulled forward to make the two oblique sides of the isosceles trapezoidal plate be located on the first lower module 13, and then the two oblique sides of the isosceles trapezoidal plate are tilted downward by the stamping of the first stamping part 23 (such as Fig. 9 At the middle C, here we take the inclination of 30° as an example), so that the two oblique sides of the subsequent isosceles trapezoidal plate can be well enclosed, thus finally forming;

[0071] Then the material strip is pulled forward to make the middle of the isosceles trapezoidal plate face the second lower module 15, and the second punching part 25 is used to punch the isosceles trapezoidal plate into an n-shaped plate (such as Fig. 9D in the figure), and finally the material strip is pulled forward so that the bottom of the n-shaped plate is facing the U-shaped groove on the top surface of the third lower module 18, and the first upper mold 2 is driven downward by the driving cylinder, so that the third stamping part 28 is moved downward. Due to the effect of the bending edge 83, during the stamping process, the two bending edges 83 will be close to each other under the cooperation of the U-shaped groove on the top surface of the third lower module 18 until a tubular handle material (such as Fig. 9 E in the figure);

[0072] Finally, the material strip is pulled forward so that the tubular handle material formed on the material strip is located above the discharge slot 110, and the punching block 24 is driven to move downward to complete the unloading of the tubular handle material. At this time, the spacing portion 84 (such as Fig. 9 F in the figure), the tubular handle material and the material strip are automatically separated, so that the tubular handle material can be processed by the first continuous die, avoiding the deficiency of the existing die that can only process the seamed tubes with basically similar shapes on both end faces, and avoiding the trouble of requiring multiple sets of die to be processed and positioned separately during processing.

[0073] It should be noted that while each subsequent processing step is being carried out, the previous step is also being carried out simultaneously. The specific forming of the tubular handle material is as follows: Fig. 9 As shown;

[0074] In addition, after the tubular handle material is formed, a fixing structure (not shown) is provided to fix the tubular handle material, and then a robot drives a welding device to complete welding at the linear joint, thereby obtaining a tubular handle portion 101 with a first weld 1011.

[0075] Before placing the tubular lining member 102 in the large opening end of the tubular handle portion 101 and welding and fixing it in step 7, the two ends of the tubular lining member 102 are expanded to facilitate the subsequent assembly of the tubular lining member 102 with the tubular handle portion 101 and the plug-in end 1051 of the rubber grip 105. This not only facilitates the initial clamping and fixing of the tubular lining member 102 in the large opening end of the tubular handle portion 101, but also ensures stable welding after the subsequent clamping of the tubular lining member 102 and the tubular handle portion 101. At the same time, it avoids the problem that the plug-in end 1051 of the rubber grip 105 is not inserted accurately when the size is the same as the pipe mouth of the hollow pipe, the plug-in efficiency is low, and the rubber grip 105 of the plastic part is easily scratched.

[0076] Specifically, for the equipment for expanding the holes at both ends of the tubular lining 102 and its specific working principle, please refer to the patent previously applied for by the applicant, "An automatic forming device for expanding the holes at both ends of a hollow tube" (application number CN202420636180.1), which will not be elaborated here.

[0077] like Figure 10-15As shown, steps six and seven require the use of welding equipment, which includes a welding mechanism 60, a first vibrating material tray 70, a second vibrating material tray 3, a third vibrating material tray 4, a first fixing mechanism 6, a first material taking mechanism 5, a second clamping assembly 7, a second material taking mechanism 8, a flipping mechanism 9, a third material taking mechanism 10 and a moving table 80;

[0078] The welding mechanism 60 includes a six-axis manipulator 601 and a welding assembly 602. The output end of the six-axis manipulator 601 is fixedly connected to the welding assembly 602. The welding assembly 602 is an existing welding device, and the specific principle is not described in detail here.

[0079] The first vibrating tray 70 is used to place the tubular handle portion 101, and a first discharge plate 701 is provided at the discharge end thereof;

[0080] The second vibrating tray 3 is used to place the handle precision casting 103, and a second discharge plate 31 is provided at the discharge end thereof;

[0081] The third vibrating tray 4 is used to place the tubular liner 102, and a third discharge plate 41 is provided at the discharge end thereof;

[0082] The vibration discharging of the first vibration tray 70, the second vibration tray 3 and the third vibration tray 4 is prior art and will not be described in detail here;

[0083] The first fixing mechanism 6 includes a third adjusting component 61 (which can be set as a three-axis manipulator) and a first clamping component 62, and the output end of the third adjusting component 61 is fixedly connected to the first clamping component 62 (which can be set as a pneumatic clamp);

[0084] The first material taking mechanism 5 is used to transfer the tubular handle parts 101 on the first material discharging plate 701 to the first clamping assembly 62 one by one;

[0085] The first material taking mechanism 5 transfers the tubular handle 101 to the first clamping assembly 62. After being clamped and fixed by the first clamping assembly 62, the first clamping assembly 62 is driven to move by the third adjusting assembly 61, so that the small opening end of the tubular handle 101 is aligned with the handle head precision casting 103 fixed on the second clamping assembly 7, which is convenient for subsequent welding after the two are spliced ​​together;

[0086] The second clamping assembly 7 (which can be set as a pneumatic clamping jaw) is used to clamp and fix the handle head precision casting 103;

[0087] The second material taking mechanism 8 is used to transfer the handle head precision castings 103 on the second discharge plate 31 to the second clamping assembly 7 one by one;

[0088] The flip mechanism 9 is used to drive the tubular handle portion 101 and the handle head precision casting 103 to rotate. The flip mechanism 9 includes a first motor 91 and a fixing member 92 fixed to the output end of the first motor 91;

[0089] After a portion of the handle head precision casting 103 is welded to the tubular handle portion 101, the first motor 91 is driven to drive the fixing member 92 to rotate, thereby driving the tubular handle portion 101, the handle head precision casting 103 and the second clamping assembly 7 to rotate synchronously. At this time, the welding assembly 602 can complete the circumferential welding of the tubular handle portion 101 and the handle head precision casting 103.

[0090] The third material taking mechanism 10 is used to take out the tubular lining members 102 on the third material discharging plate 41 one by one;

[0091] The flip mechanism 9 and the second clamping assembly 7 move toward or away from each other along the moving platform 80. When the flip mechanism 9 moves toward the second clamping assembly 7 along the moving platform 80, the fixing member 92 guides the tubular lining member 102 into the large opening end of the tubular handle portion 101 and clamps the tubular lining member 102.

[0092] A moving platform 80 is provided here, and the moving platform 80 includes a slide rail and two driving cylinders, and the two driving cylinders respectively drive the flipping mechanism 9 and the second clamping assembly 7 to move on the slide rail;

[0093] Working principle: when the tubular handle 101, the handle precision casting 103 and the tubular lining 102 need to be welded, the first material taking mechanism 5 is adjusted to take out a tubular handle 101 and transfer it to the first clamping assembly 62, and then the first clamping assembly 62 is adjusted to clamp and fix the tubular handle 101. At the same time, the handle precision casting 103 is taken out by the second material taking mechanism 8 and moved to the position facing the second clamping assembly 7.

[0094] Then, by adjusting the third adjusting component 61, the first clamping component 62 is driven to move, so that the tubular handle portion 101 is directly opposite to the handle head precision casting 103 on the second clamping component 7. At this time, the handle head precision casting 103 is located between the tubular handle portion 101 and the second clamping component 7. A driving cylinder of the movable platform 80 drives the second clamping component 7 to move close to the handle head precision casting 103 on the slide rail. The second clamping component 7 takes out and fixes the handle head precision casting 103 on the second material-picking mechanism 8 and continues to move until the handle head precision casting 103 and the tubular handle portion 101 are well fitted and spliced. At this time, the six-axis manipulator 601 is adjusted to drive the welding component 602 to move, and the preliminary welding and fixing of the two are completed; (It should be noted that after the handle head precision casting 103 on the second material-picking mechanism 8 is taken away by the second clamping component 7, the next handle head precision casting 103 will continue to be picked up, and the second material-picking mechanism 8 will not block the movement of the second clamping component 7 and the welding work of the welding component 602)

[0095] Afterwards, the first clamping assembly 62 is adjusted to no longer fix the tubular handle portion 101, and the third adjusting assembly 61 drives the first clamping assembly 62 to move and reset, so as to facilitate the subsequent fixing of the next tubular handle portion 101. Since a portion of the tubular handle portion 101 and the handle head precision casting 103 are welded, the tubular handle portion 101 will not fall off.

[0096] Then, another driving cylinder of the movable platform 80 is adjusted to drive the flip mechanism 9 to move closer to the second clamping assembly 7 until the fixing member 92 can fix the tubular handle portion 101 (the specific fixing method is described below). After the fixing member 92 fixes the tubular handle portion 101, the fixing member 92 is driven to rotate by starting the first motor 91, thereby driving the tubular handle portion 101, the handle head precision casting 103 and the second clamping assembly 7 to rotate. While the tubular handle portion 101 and the handle head precision casting 103 are rotating, the circumferential welding of the joint between the two can be completed by the welding mechanism 60.

[0097] After the tubular handle portion 101 and the handle head precision casting 103 are welded, the driving cylinder of the movable platform 80 is adjusted to reset the fixing member 92, and then a tubular lining member 102 is picked up and transferred to between the fixing member 92 and the tubular handle portion 101 through the third material picking mechanism 10, and then the driving cylinder of the movable platform 80 is adjusted to drive the flip mechanism 9 to move close to the second clamping assembly 7, so that the fixing member 92 takes out the tubular lining member 102 on the third material picking mechanism 10 and introduces it into the large opening end of the tubular handle portion 101 and initially clamps and fixes it (because the openings at both ends of the tubular lining member 102 are bent outward to expand, and the cross-sectional size of the tubular handle portion 101 gradually decreases from the large opening end to the small opening end, so when the tubular lining member 102 gradually enters the tubular handle portion 101, it will be initially clamped and fixed in the tubular handle portion 101);

[0098] After the tubular lining member 102 is initially clamped on the tubular handle portion 101, the turning mechanism 9 is adjusted by the driving cylinder of the moving platform 80 to reset so that it does not block the welding work of the welding assembly 602. The six-axis manipulator 601 is adjusted to drive the welding assembly 602 to move to complete the welding of the tubular handle portion 101 and the tubular lining member 102. Fig.15 The handle is ready to be polished.

[0099] In addition, by providing a moving platform 80 and two cylinders to respectively drive the flip mechanism 9 and the second clamping assembly 7 to move on the slide rail, the third adjustment assembly 61 can be adjusted in only two axes (i.e., the vertical direction and the horizontal direction perpendicular to the slide rail);

[0100] The molding equipment and working principle of the tubular lining member 102 are similar to the molding principle of the tubular handle material, and the specific molding principle is not described here. The specific molding process of the tubular lining member 102 is as follows: Figure 5 As shown, the metal strip is punched out with a plurality of parallel vertical grooves 85 through the second continuous die, and then two groups of parallel second transverse grooves 86 are punched out, each group includes a plurality of second transverse grooves 86 arranged along the length direction of the metal strip, a rectangular plate is formed between the two vertical grooves 85, and a connecting section 87 is provided between each group of second transverse grooves 86. Both ends of each vertical groove 85 are connected to the center positions of the two second transverse grooves 86 and are perpendicular to each other. Then, the two vertical sides of the rectangular plate connected to the vertical grooves 85 are pre-punched and bent by the second continuous die (as shown in FIG. Figure 5 and Figure 6 The angle between the vertical side of the bend and the horizontal plane of the material strip is not less than 30°, so that the two vertical sides of the subsequent rectangular plate can be well enclosed, thus forming the final shape, and then the rectangular plate is stamped and bent into an n-shape (such as Figure 5 and Figure 6 H in the middle), and then stamp and bend to close the two vertical sides (such as Figure 5 and Figure 6 At J in the figure) a tubular lining member 102 is formed.

[0101] like Figure 15-19 As shown, step eight requires the use of a polishing device, the small opening end of the tubular handle portion 101 is elliptical, so that the second weld 1012 is elliptical, and the polishing device includes a rotating table 50, at least three rotating fixing mechanisms 20, a first grinding mechanism 30 and a second grinding mechanism 40;

[0102] At least three rotating and fixing mechanisms 20 are equidistantly arranged on the outer edge of the rotating platform 50, and each rotating and fixing mechanism 20 includes a second motor for driving the spoon handle to rotate and a clamping assembly for clamping and fixing the spoon handle;

[0103] The first grinding mechanism 30 is arranged opposite to a rotating fixing mechanism 20, and the first grinding mechanism 30 includes a first adjusting component, a first driving component, a first grinding belt 307 and a first abutting component, and the first abutting component includes a first elastic member 309 and a first top wheel 311. When the first elastic member 309 is in a compressed state, the first top wheel 311 presses the first grinding belt 307 tightly against the second weld 1012 of the spoon handle, and the second motor drives the spoon handle to rotate, and the first driving component drives the first grinding belt 307 to circulate to polish the second weld 1012;

[0104] The second grinding mechanism 40 is arranged opposite to another rotating fixing mechanism 20, and includes a second adjusting assembly, a second driving assembly, a second grinding belt 407 and a second abutting assembly, and the second abutting assembly includes a second elastic member 409 and a second top wheel 411. When the second elastic member 409 is in a compressed state, the second top wheel 411 presses the second grinding belt 407 tightly against the first weld 1011 of the spoon handle, and the second adjusting assembly drives the second grinding belt 407 to move along the length direction of the second weld 1012 to polish the first weld 1011;

[0105] Here, the welded tubular handle portion 101, the handle head precision casting 103 and the tubular lining member 102 are defined as a spoon handle to be polished;

[0106] When in use, the spoon handle to be polished is placed on the rotating fixing mechanism 20 that is not facing the first polishing mechanism 30 and the second polishing mechanism 40 for fixing, and then the rotating table 50 is adjusted to rotate a certain angle so that the spoon handle to be polished moves to face the first polishing mechanism 30 or the second polishing mechanism 40. Here, the spoon handle to be polished is first moved to face the first polishing mechanism 30 to polish the second weld 1012 as an example for explanation:

[0107] First, the first driving assembly is driven to drive the first grinding belt 307 to circulate, and the second driving assembly is driven to drive the second grinding belt 407 to circulate. The first adjusting assembly is adjusted to make the first grinding belt 307 face and fit the second weld 1012. At this time, the first elastic member 309 is in a compressed state. The rebound force generated by the first elastic member 309 acts on the first top wheel 311. The first top wheel 311 pushes the first grinding belt 307 tightly against the second weld 1012 of the spoon handle, so that the first grinding belt 307 has a better polishing effect when it is cyclically rotated for grinding. After the first top wheel 311 presses the first grinding belt 307 tightly against the second weld 1012 of the spoon handle, the second motor is started to drive the spoon handle to rotate, so that the elliptical second weld 1012 can be fully polished (it should be noted that since the second weld 1012 is elliptical, when the spoon handle to be polished rotates, the first elastic member 309 will continue to shrink or stretch, but the first elastic member 309 is always in a compressed state, ensuring that the first grinding belt 307 is always pressed tightly against the second weld 1012 of the spoon handle to be polished);

[0108] After the polishing and grinding of the second weld 1012 is completed, the rotating table 50 is adjusted to rotate so that the spoon handle with the polished second weld 1012 moves to face the second grinding mechanism 40. Similarly, the second adjusting component is adjusted to make the second grinding belt 407 face and fit the first weld 1011. At this time, the second elastic member 409 is in a compressed state, and the rebound force generated by the second elastic member 409 acts on the second top wheel 411. The second top wheel 411 pushes the second grinding belt 407 to fit tightly against the first weld 1011 of the spoon handle, so that the second grinding belt 407 has a better polishing and grinding effect when it is cyclically rotated for grinding. While the second grinding belt 407 is cyclically moving, the second adjusting component is adjusted to drive the second grinding belt 407 to reciprocate along the length direction of the second weld 1012, thereby completing the comprehensive polishing and grinding of the first weld 1011, that is, the polishing and grinding of the first weld 1011 and the second weld 1012 generated after the welding of the spoon handle is automatically completed by the equipment. Fig.15 The handle to be polished is converted to Fig.16 Semi-finished handle in state;

[0109] While the first weld 1011 of one spoon handle is being polished, the first polishing mechanism 30 is facing another spoon handle to be polished and fixed on another rotating fixing mechanism 20, and the first polishing mechanism 30 synchronously polishes the second weld 1012 of the other spoon handle to be polished and polished;

[0110] The rotating fixing mechanism 20 is used to fix the handle of the soup spoon to be polished, the first driving assembly and the second driving assembly are used to realize the transmission movement of the first polishing belt 307 and the second polishing belt 407, and the first adjusting assembly and the second adjusting assembly are used to adjust the positions of the first polishing belt 307 and the second polishing belt 407 to realize the polishing of the first weld 1011 and the second weld 1012.

[0111] like Figure 3 and Figure 4 As shown, the first welding portion 1031 of the handle precision casting 103 has a surplus portion 1036 at one end facing the arc groove, and the first welding portion 1031 matching the arc size of the arc groove is obtained by laser cutting the surplus portion 1036;

[0112] By setting the excess material portion 1036, it can be ensured that the first rib 1033 has a suitable amount of material flow to the weld of the arc groove welding of the handle head precision casting 103 and the spoon head 104. The shape of the first welding portion 1031 can be adjusted by laser cutting, so that the weld between the arc groove of the handle head precision casting 103 and the spoon head 104 protrudes about 0.2mm after welding, which can take into account the polishing amount after welding. In addition, laser cutting can have a sharp cutting surface, such as directly precision casting Figure 4The shape of the handle is welded, and no excess material part 1036 is set for cutting. After the sandblasting process in the precision casting process, there will be collapsed angles, which is not conducive to the tight fit of the seams. Cutting can ensure the accuracy of the welding line and avoid deformation of the handle head precision casting 103 during transportation and parts stacking after the precision casting, resulting in inconsistent welding lines.

[0113] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic production process for metal soup spoons, characterized in that: The metal soup spoon comprises a tubular handle portion (101), a tubular lining member (102), a handle precision casting (103), a spoon head (104) and a rubber grip (105), wherein the rubber grip (105) has a plug-in end (1051), the handle precision casting (103) is bent, the handle precision casting (103) has a first welding portion (1031) and a second welding portion (1032), first convex ribs (1033) and welding ears (1034) are symmetrically arranged on both sides of the outer periphery of the first welding portion (1031) of the handle precision casting (103), and a second convex rib (1035) is arranged on the outer periphery of the second welding portion (1032) for compensating material during welding to compensate for the thickness of the weld material, so that the weld is naturally convex after cooling, which can effectively avoid weld depression and reduce the difficulty of subsequent polishing. The production process comprises the following steps: One: a metal strip is selected to punch out a circular plate material through a punching die, and then a punching and stretching die is used to punch and stretch the circular plate material to obtain a hemispherical spoon head (104); Second, a metal strip is selected and punched, stamped, bent and blanked by a first continuous die to obtain a tubular handle material, the tubular handle material has a straight seam, the seam of the tubular handle material is welded to obtain a tubular handle portion (101), the tubular handle portion (101) has a first weld seam (1011), the tubular handle portion (101) has a large opening end and a small opening end, and the second welding portion (1032) is adapted to the size of the small opening end; 3. Select a metal strip and subject it to punching, stamping, bending and blanking by a second continuous die to obtain a tubular lining member (102); Fourth, a rubber grip (105) having a plug-in end (1051) is injection molded by an injection mold; There is no order of precedence for steps 1, 2, 3 and 4, and they can be performed simultaneously; Fifth, cutting an arc-shaped groove on the outer edge of the hemispherical spoon head (104) obtained in step 1, wherein the arc of the arc-shaped groove matches the arc of the first welding portion (1031); Sixth: aligning the second welding portion (1032) of the handle head precision casting (103) with the small opening end of the tubular handle portion (101) and then circumferentially welding to form a second weld (1012); Seven: placing the tubular lining member (102) obtained in step three into the large opening end of the tubular handle portion (101) welded with the handle head precision casting (103) in step six and welding and fixing them to obtain the handle to be polished; Eight: polishing the first weld seam (1011) and the second weld seam (1012) of the handle to be polished to obtain a semi-finished handle; Nine: aligning the first welding portion (1031) of the handle head precision casting (103) on the semi-finished handle with the arc groove, welding, polishing and grinding to obtain a semi-finished soup spoon; 10. Apply glue to the inner wall of the tubular lining member (102) in the large open end of the tubular handle portion (101) of the semi-finished soup spoon and / or the outer wall of the plug-in end (1051) of the rubber grip (105), align the plug-in end (1051) of the rubber grip (105) with the tubular lining member (102) in the large open end of the tubular handle portion (101) of the semi-finished soup spoon, insert the plug-in end (1051) of the rubber grip (105) into the tubular lining member (102) in the large open end of the tubular handle portion (101) of the semi-finished soup spoon, and fix the plug-in end (1051) by gluing to obtain a finished soup spoon.

2. The automatic production process of metal soup spoons according to claim 1, characterized in that: The radius of the arc groove is 18 mm to 25 mm, and the maximum vertical distance from the top surface of the spoon head (104) to the arc groove is 7 mm to 10 mm.

3. The automatic production process of metal soup spoons according to claim 1, characterized in that: A hemispherical spoon head (104) is obtained by punching a circular plate material through a third continuous die, wherein the third continuous die comprises a plurality of third lower dies and a third upper dies which are linearly distributed, wherein a spherical depression is provided on the top surface of each third lower die, and the depth of each spherical depression gradually increases along the linear distribution direction of the third lower die, and the amount of each deepening is 1 / 9-1 / 5 of the radius of the circular plate material, and a spherical protrusion which is adapted to the spherical depression of the third lower die directly opposite to the third upper die is provided on the bottom surface of each third upper die.

4. The automatic production process of metal soup spoons according to claim 1, characterized in that: The cross-sectional size of the tubular handle portion (101) gradually increases from one end to the other end, and the tubular handle portion (101) is unfolded into an isosceles trapezoid. The first continuous die comprises: A first lower mold (1), wherein a first punching hole (11), a second punching hole (12), a first groove (131), a second groove (151), a third groove (181) and a discharge slot (110) are sequentially provided on a top surface of the first lower mold (1) along its length direction, at least four of the first punching holes (11) are symmetrically arranged in parallel along a center line of the top surface of the first lower mold (1) in the length direction, two of the second punching holes (12) are obliquely symmetrically arranged along a width direction of the first lower mold (1), and the first groove (131) is provided with a first groove (131) and a second groove (151) disposed in a third groove (181) and a discharge slot (110) ... A first lower module (13) is provided, one side of the top surface of the first lower module (13) is set as a first bending surface (132) bent downward, a second lower module (15) in an n-shape is provided in the second groove (151), the top surface height of the second lower module (15) gradually decreases from one end to the other end, a third lower module (18) is provided in the third groove (181), a U-shaped groove is provided on the top surface of the third lower module (18), the depth of the U-shaped groove gradually increases from one end to the other end, and the notches at both ends of the U-shaped groove are set as arcs that expand outwards; A first upper mold (2), wherein the bottom surface of the first upper mold (2) is provided with a first punching piece (21), a second punching piece (22), a first stamping piece (23), a second stamping piece (25), a third stamping piece (28) and a punching block (24) in sequence along its length direction; the bottom of the first stamping piece (23) is provided with a second bending surface (231) adapted to the first bending surface (132); the bottom of the second stamping piece (25) is provided with a contoured groove adapted to the second lower mold block (15); the bottom surface of the third stamping piece (28) is provided with a stamping groove adapted to the curvature of the top surface of the second lower mold block (15); and when the third stamping piece (28) and the third lower mold block (18) are molded together, a cavity adapted to the size of the outer wall of the tubular handle material is formed; The first punching piece (21) and the first notch hole (11) are used to punch out a first transverse groove (81) on a long metal strip, and a connecting spacer (84) is provided between two adjacent first transverse grooves (81) on the same side of the strip. The second punching piece (22) and the second notch hole (12) are used to punch out an inclined groove (82) on the long metal strip to obtain an isosceles trapezoidal plate, and each of the two ends of the inclined groove (82) is respectively connected to a first transverse groove (81). The first lower module (13) and the first stamping piece (23) are used to stamp out two oblique sides of the isosceles trapezoidal plate to form a bent edge (83).

5. The automatic production process of metal soup spoons according to claim 1, characterized in that: Before placing the tubular lining member (102) in the large opening end of the tubular handle portion (101) and welding and fixing it in step seven, both ends of the tubular lining member (102) are expanded.

6. The automatic production process of metal soup spoons according to claim 1, characterized in that: Steps 6 and 7 require the use of welding equipment, which includes: The welding mechanism (60) comprises a six-axis manipulator (601) and a welding assembly (602), wherein the output end of the six-axis manipulator (601) is fixedly connected to the welding assembly (602); A first vibrating material tray (70) is used to place the tubular handle portion (101), and a first discharge plate (701) is provided at a discharge end thereof; A second vibrating material tray (3) is used to place the handle head precision casting (103), and a second discharge plate (31) is provided at the discharge end thereof; A third vibrating material tray (4) is used to place the tubular lining member (102), and a third discharge plate (41) is provided at a discharge end thereof; A first fixing mechanism (6) comprises a third adjusting component (61) and a first clamping component (62), wherein an output end of the third adjusting component (61) is fixedly connected to the first clamping component (62); A first material taking mechanism (5) is used to transfer the tubular handle parts (101) on the first material discharging plate (701) to the first clamping assembly (62) one by one; A second clamping assembly (7) is used to clamp and fix the handle head precision casting (103); A second material taking mechanism (8) is used to transfer the handle head precision castings (103) on the second discharge plate (31) one by one to the second clamping assembly (7); A turning mechanism (9) is used to drive the tubular handle portion (101) and the handle head precision casting (103) to rotate, wherein the turning mechanism (9) comprises a first motor (91) and a fixing member (92) fixed to the output end of the first motor (91); A third material taking mechanism (10) is used to take out the tubular lining members (102) on the third material discharging plate (41) one by one; The movable platform (80) is provided, wherein the flipping mechanism (9) and the second clamping assembly (7) move toward or away from each other along the movable platform (80); when the flipping mechanism (9) moves along the movable platform (80) toward the second clamping assembly (7), the fixing member (92) guides the tubular lining member (102) into the large opening of the tubular handle portion (101) and clamps the tubular lining member (102).

7. The automatic production process of metal soup spoons according to claim 1, characterized in that: The metal strip is punched out with a plurality of parallel vertical grooves (85) through a second continuous die, and then two groups of parallel second transverse grooves (86) are punched out, each group comprising a plurality of second transverse grooves (86) arranged along the length direction of the metal strip, a rectangular plate is formed between the two vertical grooves (85), a connecting section (87) is provided between each group of second transverse grooves (86), both ends of each vertical groove (85) are connected to the center positions of the two second transverse grooves (86) and are perpendicular, and then the two vertical sides connecting the rectangular plate and the vertical grooves (85) are pre-punched and bent by the second continuous die, and then the rectangular plate is punched and bent into an n-shape, and then the two vertical sides are punched and bent to close each other.

8. The automatic production process of metal soup spoons according to claim 1, characterized in that: Step eight requires the use of a polishing device, the small opening end of the tubular handle portion (101) is oval-shaped, and the polishing device includes: Rotating table (50); At least three rotating and fixing mechanisms (20) are equidistantly arranged on the outer edge of the rotating platform (50), each of the rotating and fixing mechanisms (20) comprising a second motor for driving the spoon handle to rotate and a clamping assembly for clamping and fixing the spoon handle; A first polishing mechanism (30) is arranged opposite to a rotating fixing mechanism (20), comprising a first adjusting component, a first driving component, a first polishing belt (307) and a first abutting component, wherein the first abutting component comprises a first elastic member (309) and a first top wheel (311), and when the first elastic member (309) is in a compressed state, the first top wheel (311) presses the first polishing belt (307) tightly against a first weld (1011) of the spoon handle, the second motor drives the spoon handle to rotate, and the first driving component drives the first polishing belt (307) to circulate to polish the first weld (1011); The second polishing mechanism (40) is arranged opposite to the other rotating fixing mechanism (20), and comprises a second adjusting assembly, a second driving assembly, a second polishing belt (407) and a second abutting assembly. The second abutting assembly comprises a second elastic member (409) and a second top wheel (411). When the second elastic member (409) is in a compressed state, the second top wheel (411) presses the second polishing belt (407) tightly against the second weld (1012) of the spoon handle. The second adjusting assembly drives the second polishing belt (407) to move along the length direction of the second weld (1012) to polish the second weld (1012).

9. The automatic production process of metal soup spoons according to claim 4, characterized in that: The first welding portion (1031) of the handle precision casting (103) has a surplus portion (1036) at one end facing the arc groove, and the first welding portion (1031) matching the arc size of the arc groove is obtained by laser cutting the surplus portion (1036).

Images