Production process of a double-layer sieve

Abstract

The present application discloses a production process for a double-layer sieve, belonging to the technical field of sieve processing. The key technical points of its technical solution are as follows: cutting the metal raw material, laser-welding the head and tail of the cut metal material, processing through multiple stamping and hemming, necking processes by the hydraulic press working, and rolling and forming through the rolling device to obtain the inner layer of the sieve and the outer layer of the sieve. Then, the inner layer of the sieve, the outer layer of the sieve, and the sieve mesh are tightly pressed and combined by glue and the press to obtain the double-layer sieve. The present application provides a production process for a double-layer sieve, which facilitates the stacking of the double-layer sieve, improves the transportation efficiency during the processing of the double-layer sieve, and reduces the labor intensity during handling.

Description

Technical Field

[0001] This application belongs to the technical field of sieve processing, and particularly relates to a production process for double-layer sieves. Background Art

[0002] In daily life, industrial production, and laboratories, sieves are one of the most commonly used items by people, used for material screening, water filtration, etc., and play a crucial role in the market.

[0003] The existing Chinese patent with the publication number CN113275848A discloses a production process for laser-welding double-layer sieves. The production process includes: Step 1: Selecting ferritic stainless steel or stainless steel as raw materials; Step 2: Laser-welding the raw materials; Step 3: Using a hydraulic press to press the product in Step 2 to make it shrink the edge inward to obtain an inner layer component and an outer layer component; Step 4: Placing the inner layer component into a fixture with spray glue and clamping the product through the inner pull of a cylinder to perform edge curling at the mouth; Step 5: Using a double-rod hydraulic press to press the bottom shrinkage part of the outer layer component; Step 6: Pulling out the reinforcing ribs on the outer layer component; Step 7: Placing a sieve mesh and the inner layer component obtained in Step 4 into the outer layer component obtained in Step 6 and combining them through a press to obtain a double-layer sieve.

[0004] Although the above production process can achieve the processing of double-layer sieves, there is no necking processing on the outer layer of the sieve during the processing, and ultimately there will be difficulties in stacking the double-layer sieves vertically. This problem still needs to be improved. Summary of the Invention

[0005] The purpose of this application is to provide a production process for double-layer sieves aiming at the above existing technical problems, which is convenient for stacking double-layer sieves, improves the transportation efficiency during the processing of double-layer sieves, and reduces the labor intensity during handling.

[0006] This application provides a production process for double-layer sieves. The specific steps include:

[0007] S1, Selecting a metal coil as the raw material, feeding the coil into a circular coiling mechanism for cutting, and laser-welding the head and tail of the cut metal material to obtain a primary outer layer product and a primary inner layer product;

[0008] S2, Through the operation of a hydraulic press, using a flanging die to fold one side of the primary inner layer product inward to obtain a secondary inner layer product, and using a curling die to form a curl outward on the other side of the secondary inner layer product to obtain a tertiary inner layer product;

[0009] S3, Using a rolling device to form an outer convex inner reinforcing rib on the tertiary inner layer product near the flanged side to obtain the sieve inner layer;

[0010] S4. By operating a hydraulic press and using a flanging die to fold one side of the primary outer layer product inward, a secondary outer layer product is obtained. Then, a double flanging die is used to perform a second flanging on the flanged edge of the secondary outer layer product to give it a V-shaped structure, resulting in a tertiary outer layer product. Next, a necking die is used to neck in one side of the flanged edge of the tertiary outer layer product, obtaining a quaternary outer layer product;

[0011] S5. By means of a rolling device, an outwardly protruding outer reinforcing rib is formed on the quaternary outer layer product near the flanged edge, obtaining the outer layer of the sieve tool;

[0012] S6. Place the inner layer of the sieve tool with the open end facing downwards in an inverted manner, place the sieve mesh on the inner layer of the sieve tool, and put the outer layer of the sieve tool over the inner layer of the sieve tool. Through a pre-compression step using a press, the sieve mesh can be tensioned. Then, apply glue to the place where the sieve mesh abuts against the inner layer of the sieve tool, and continue to use the press to compress the inner layer and the outer layer of the sieve tool, so that the sieve mesh is clamped between the inner layer and the outer layer of the sieve tool.

[0013] The outer layer of the sieve tool is processed by stamping to form a necked-in structure, which can be stacked relatively stably after the double-layer sieve tool is completed. The sieve mesh is pressed tightly between the inner layer and the outer layer of the sieve tool by a press. Through pre-compression, the sieve mesh can be tensioned. By applying glue and re-compressing with a press, the connection tightness between the sieve mesh and the inner layer and the outer layer of the sieve tool is improved, the overall structural strength of the double-layer sieve tool is enhanced, making the double-layer sieve tool more stable and durable, and extending its service life.

[0014] Further, a conveying device is used during the processing of the inner and outer layers of the sieve tool. The conveying device includes:

[0015] A conveying frame;

[0016] A moving seat, which is installed on the conveying frame through guide rails and sliders, and the moving seat is provided with a placement plate;

[0017] A slideway groove, which is placed on the conveying frame;

[0018] Rollers, which are installed on the moving seat and are adapted to the slideway groove;

[0019] A chain, which is used to connect all the moving seats;

[0020] A driving device, which is used to drive the chain to move;

[0021] A connecting rod structure, which is placed between adjacent moving seats;

[0022] An adjusting mechanism, which is used to adjust the placement plate;

[0023] Among them, the conveying device is provided with a folding area. The moving seats in the folding area are inclined. The slideway groove corresponding to the folding area is smoothly transitioned with the slideway groove outside the folding area. Two placement plates are provided and placed side by side on the moving seat.

[0024] The double-layer sieve is processed step by step from the raw material metal coil during the processing, transported between different hydraulic presses, rolling devices, and presses, and these devices are connected in series through a conveying device, which can reduce the labor intensity of manual handling. It is connected between different devices through a conveying frame, with a slider installed between the slider and the chain, and the chain is driven to move by a driving device, thereby driving the moving seat to move. The moving seat is installed on the conveying frame through a guide rail and a slider, and a placement plate is installed on the moving seat. The inner and outer layers of the sieve are placed on the placement plate. The inner and outer layers of the sieve occupy a large area. When the inner and outer layers of the sieve are placed horizontally, the number that can be conveyed on the conveying frame is small. The inner and outer layers of the sieve are convenient and fast to place horizontally, and then the inner and outer layers in the horizontal state are inclined at a certain angle through the folding area, and the moving seat rotates around the slider through the slideway groove structure, enabling the inner and outer layers to be stacked horizontally, increasing the number of inner and outer layers of the sieve that can be placed on the limited conveying frame, ensuring the stable processing efficiency of the inner and outer layers of the sieve. Two placement plates are provided, enabling two inner and outer layers of the sieve to be correspondingly placed on the same moving seat, and the placement plate is adjusted through an adjustment mechanism to adapt to the inner and outer layers of the sieve with different sizes.

[0025] Further, the link structure includes:

[0026] Two rods, which are hinged;

[0027] Moving blocks, placed at both ends of the rod;

[0028] A first moving groove, placed on one side of the moving seat;

[0029] A second moving groove, placed on the other side of the moving seat;

[0030] A driving rod, used to drive the moving block to move;

[0031] Wherein, the rod is placed between the second moving groove of the previous moving seat and the first moving groove of the next moving seat, and the moving block is connected to the rod through a spherical joint.

[0032] The link structure connects adjacent moving seats. When the moving seat enters the folding area, under the action of the slideway groove and the roller, the moving seat rotates around the driving rod, and at the same time, the driving rod controls the movement of the moving block, so that the rod rotates around the hinged position, controlling adjacent moving seats to approach each other. The tension when the moving seat in the folding area moves is transmitted through the rod, thereby enabling the moving seat to move cyclically on the conveying frame. The first moving groove and the second moving groove are respectively placed on both sides of the moving seat, and the same rod is connected between the second moving groove of the previous moving seat and the first moving groove of the next moving seat.

[0033] Further, the driving rod is mounted on the slider. The driving rod is provided with a driving groove. The moving seat is connected to the driving rod through a bearing. The moving block is provided with a driving portion adapted to the driving groove. The driving groove is provided with a curve area and an adjustment area.

[0034] When the moving seat and the driving rod rotate relative to each other, the driving portion moves along the driving groove, causing the two driving portions to move closer to or away from each other. The moving block moves simultaneously with the driving portion. The driving portion is mounted on the moving block located on the first moving groove. While the driving portion moves, the moving block moves on the first moving groove. When the placing plate is in a horizontal state, the moving blocks located on the same moving groove approach each other. When the placing plate rotates to an inclined state, the moving blocks located on the same moving groove move away from each other. When the driving portion moves in the curve area, it can control the movement of the moving block on the first moving groove.

[0035] Further, the placing plate can be separated, including a first side plate and a second side plate. The adjusting mechanism can adjust both the first side plate and the second side plate.

[0036] The first side plate and the second side plate respectively place the inner and outer layers of two sieves. By adjusting the first side plate and the second side plate through the adjusting mechanism, it can adapt to the inner and outer layers of sieves of different sizes, and it can achieve the conveying of the inner and outer layers of the sieve without changing the width of the conveying rack.

[0037] Further, the adjusting mechanism includes:

[0038] An adjusting motor;

[0039] An adjusting seat, placed between the placing plate and the moving seat. The placing plate is hinged to the adjusting seat;

[0040] An adjusting screw rod, mounted on the moving seat. The adjusting screw rod is connected to the adjusting motor through a gear;

[0041] A winding wheel, mounted on the adjusting seat. The winding wheel is wound with a connecting rope;

[0042] A first winding wheel, placed on the adjusting seat;

[0043] A second winding wheel, placed on the moving seat;

[0044] A stabilizing seat, placed on the adjusting seat;

[0045] A first spring, placed between the stabilizing seat and the adjusting seat;

[0046] A torsion spring, placed between the winding wheel and the adjusting seat;

[0047] A first gear, mounted on the winding wheel;

[0048] An incomplete tooth portion, placed on the placing plate and adapted to the first gear;

[0049] Wherein, the adjusting seat is adapted to the adjusting lead screw, the connecting rope is wound around the first winding wheel and the second winding wheel, and the end of the connecting rope is installed and connected to the stabilizing seat.

[0050] The adjusting motor drives the adjusting lead screw to rotate, the lead screw drives the adjusting seat to move, and the adjusting seat is hinged to the placing plate to realize the moving adjustment of the placing plate. The first side plate and the second side plate are respectively provided with their own adjusting seats. When the two adjusting seats move away from each other, the connecting rope is unreeled from the winding wheel under the pulling of the first winding wheel and the second winding wheel, and the winding wheel rotates under the pulling of the connecting rope. At the same time, the first gear rotates, and the first gear drives the incomplete tooth part to rotate. The incomplete tooth part is placed on the hinge shaft of the placing plate, so as to control the rotation of the first side plate and the second side plate, and form an included angle between the first side plate and the second side plate. When the adjusting seats move closer to each other, the winding wheel is reset by the torsion spring, and the connecting rope is wound around the winding wheel again. The connecting rope can be kept in a tensioned state through the stabilizing seat and the first spring, ensuring the stable unreeling and winding of the connecting rope.

[0051] Furthermore, the placing plate includes:

[0052] A limiting part, placed on the upper surface of the placing plate;

[0053] A support rod, installed on the first side plate;

[0054] A limiting wheel;

[0055] Wherein, the second side plate is provided with a support groove adapted to the limiting wheel.

[0056] When the winding wheel, the first winding wheel and the first gear are only installed on the adjusting seat corresponding to the second side plate, after the adjusting seat moves and rotates, the limiting wheel is driven through the support groove, so that the first side plate rotates, and an included angle can be formed between the first side plate and the second side plate. And the inner and outer layers of the sieve placed on the first side plate and the second side plate are staggered, and a larger placement of the inner and outer layers of the sieve can be realized. The inner and outer layers of the sieve are prevented from slipping off the first side plate and the second side plate through the limiting part. The limiting wheel is installed on the support rod, improving the structural stability between the first side plate and the second side plate.

[0057] Furthermore, on the conveying device corresponding to the press, the first side plate is entirely placed with the inner layer of the sieve, and the second side plate is entirely placed with the outer layer of the sieve; or, the first side plate is entirely placed with the outer layer of the sieve, and the second side plate is entirely placed with the inner layer of the sieve.

[0058] By placing different inner and outer layers of the sieve on the first side plate and the second side plate, when the inner and outer layers of the sieve are pressed tightly in step S6, the inner layer and the outer layer of the sieve can be taken at one time, reducing the number of times of taking by the staff and improving the production efficiency of the double-layer sieve.

[0059] The beneficial effects of the present application are as follows:

[0060] 1. The outer layer of the sieve is processed by stamping to form a structure with a retracted opening. After the double-layer sieve is processed, it can be stably stacked on top of each other, facilitating the placement of the double-layer sieve. The inner layer of the sieve, the sieve mesh, and the outer layer of the sieve are pressed tightly by a press, improving the installation stability of the sieve mesh and increasing the service life of the double-layer sieve.

[0061] 2. By setting a folding area on the conveying device to incline the inner and outer layers in the horizontal state, the inner and outer layers can be stacked horizontally, enabling an increase in the number of inner and outer layers of the sieve that can be placed on a limited conveyor rack and ensuring the stable processing efficiency of the inner and outer layers of the sieve.

[0062] 3. When the moving seat rotates relative to the driving rod, the driving part moves along the driving groove, causing the two driving parts to move closer to or away from each other. When the placement plate is in a horizontal state, the moving blocks located on the same moving groove move closer to each other. When the placement plate rotates to an inclined state, the moving blocks located on the same moving groove move away from each other.

[0063] 4. By adjusting the motor to drive the adjusting screw rod to rotate, the screw rod drives the adjusting seat to move. The adjusting seat is hinged to the placement plate to achieve the movement adjustment of the placement plate. When the two adjusting seats move away from each other, the connecting rope is unwound from the winding wheel under the pulling of the first and second winding wheels, and the winding wheel rotates under the pulling of the connecting rope. At the same time, the first gear rotates, and the first gear drives the incomplete tooth part to rotate. The incomplete tooth part is placed on the hinge shaft of the placement plate, thereby controlling the rotation of the first side plate and the second side plate. Description of the Drawings

[0064] Figure 1 It is a production process diagram of the double-layer sieve of the present application;

[0065] Figure 2 It is the processing device in step S2 of the present application;

[0066] Figure 3 It is the processing device in step S3 of the present application;

[0067] Figure 4 It is the processing device in step S4 of the present application;

[0068] Figure 5 It is the processing device in step S5 of the present application;

[0069] Figure 6 It is the processing device in step S6 of the present application;

[0070] Figure 7 It is a schematic structural diagram of the conveying device of the present application;

[0071] Figure 8 A schematic cross-sectional structure diagram of the transmission device of the present application;

[0072] Figure 9 A schematic top view structure diagram of the moving seat of the present application;

[0073] Figure 10 A schematic structure diagram of the driving rod of the present application;

[0074] Figure 11 A schematic structure diagram of Embodiment 6 of the present application;

[0075] Figure 12 A schematic structure diagram of Embodiment 7 of the present application;

[0076] In the figure, the reference numerals are: 001, transmission device; 100, transmission frame; 101, folding area; 110, slideway groove; 120, roller; 130, chain; 140, driving device; 200, moving seat; 210, guide rail; 220, slider; 230, adjusting motor; 231, adjusting lead screw; 240, adjusting seat; 241, winding wheel; 242, first winding wheel; 243, second winding wheel; 244, stabilizing seat; 245, first spring; 250, first gear; 251, incomplete tooth part; 300, placing plate; 301, limiting part; 310, first side plate; 320, second side plate; 330, support rod; 340, limiting wheel; 350, support groove; 400, connecting rod structure; 410, rod; 420, moving block; 421, driving part; 430, first moving groove; 440, second moving groove; 450, driving rod; 451, driving groove; 452, curve area; 453, adjusting area; 500, adjusting mechanism. Detailed implementation manners

[0077] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0078] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0079] The portable server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0080] Embodiment 1:

[0081] like Figures 1-6 As shown, the embodiment of the present application provides a production process of a double-layer sieve, and the specific steps include:

[0082] S1, selecting a metal coil as a raw material, feeding the coil into a round coil mechanism for cutting, and laser welding the ends of the cut metal material to obtain a first-level outer layer product and a first-level inner layer product;

[0083] S2, using a hydraulic press to fold one side of the first inner layer product inwards using a folding die to obtain a second inner layer product, and using a curling die to curl the other side of the second inner layer product outwards to obtain a third inner layer product;

[0084] S3, using a rolling device to form inner layer reinforcement ribs protruding outward on the side close to the folding edge of the third-level inner layer product to obtain the inner layer of the screen;

[0085] S4, using a hydraulic press to fold one side of the first outer layer product inwardly using a folding die to obtain a second outer layer product, using a secondary folding die to fold the second outer layer product twice to make it have a V-shaped structure, thereby obtaining a third outer layer product, and using a shrinking die to shrink one side of the folded edge of the third outer layer product inwardly to obtain a fourth outer layer product;

[0086] S5, using a rolling device to form an outer layer reinforcement rib protruding outward on the side close to the folded edge of the fourth-level outer layer product to obtain an outer layer of the sieve;

[0087] S6. Invert the inner layer of the sieve tool with the open end facing downwards, place the sieve mesh on the inner layer of the sieve tool, put the outer layer of the sieve tool over the inner layer of the sieve tool, and perform a pre - pressing step with a press, which can make the sieve mesh taut. Then apply glue to the place where the sieve mesh abuts against the inner layer of the sieve tool, and continue to use the press to press the inner layer and the outer layer of the sieve tool together, so that the sieve mesh is clamped between the inner layer and the outer layer of the sieve tool.

[0088] The outer layer of the sieve tool is processed by stamping to form a structure with a constricted opening. After the double - layer sieve tool is processed, they can be stacked on each other more stably. The sieve mesh is pressed tightly between the inner layer and the outer layer of the sieve tool by a press. Through pre - pressing, the sieve mesh can be made taut. By applying glue and pressing again with the press, the connection tightness between the sieve mesh and the inner layer and the outer layer of the sieve tool is improved, the overall structural strength of the double - layer sieve tool is enhanced, making the double - layer sieve tool more stable and durable, and increasing its service life.

[0089] The diameter of the primary outer - layer product is 1 - 2 mm larger than that of the primary inner - layer product.

[0090] Example 2:

[0091] As Figure 7 、 Figure 8 shown, the embodiment of the present application provides a production process for a double - layer sieve tool. In addition to including the above - mentioned technical features, further, when processing the inner and outer layers of the sieve tool, a conveying device 001 is used for conveying, and the conveying device 001 includes:

[0092] A conveying frame 100;

[0093] A moving seat 200, which is installed on the conveying frame 100 through a guide rail 210 and a slider 220. The moving seat 200 is provided with a placing plate 300;

[0094] A slideway groove 110, which is placed on the conveying frame 100;

[0095] A roller 120, which is installed on the moving seat 200 and is adapted to the slideway groove 110;

[0096] A chain 130, which is used for connecting all the moving seats 200;

[0097] A driving device 140, which is used for driving the chain 130 to move;

[0098] A connecting rod structure 400, which is placed between adjacent moving seats 200;

[0099] An adjusting mechanism 500, which is used for adjusting the placing plate 300;

[0100] Among them, the conveying device 001 is provided with a folding area 101. The moving seat 200 in the folding area 101 is inclined. The slideway groove 110 corresponding to the folding area 101 is smoothly transitioned with the slideway groove 110 outside the folding area 101. Two placing plates 300 are provided and arranged side by side on the moving seat 200.

[0101] During the processing of the double-layer sieve, it is processed step by step from the raw material metal coil, transported between different hydraulic presses, rolling devices, and presses. The conveying device 001 connects these devices in series, which can reduce the labor intensity of manual handling. It is connected between different devices through the conveying frame 100. A slider 220 is installed and connected with a chain 130. The chain 130 is driven to move by a driving device 140, thereby driving the moving seat 200 to move. The moving seat 200 is installed on the conveying frame 100 through a guide rail 210 and a slider 220. A placing plate 300 is installed on the moving seat 200. The inner and outer layers of the sieve are placed on the placing plate 300. The inner and outer layers of the sieve occupy a large area. When the inner and outer layers of the sieve are placed horizontally, the number that can be conveyed on the conveying frame 100 is small. The inner and outer layers of the sieve are convenient and fast to place horizontally. Then, the inner and outer layers in the horizontal state are inclined at a certain angle through the folding area 101. The structure of the slideway groove 110 enables the moving seat 200 to rotate around the slider 220, enabling the inner and outer layers to be stacked in the horizontal direction, increasing the number of inner and outer layers of the sieve that can be placed on the limited conveying frame 100, ensuring the stable processing efficiency of the inner and outer layers of the sieve. Two placing plates 300 are provided, enabling two inner and outer layers of the sieve to be correspondingly placed on the same moving seat 200. The placing plate 300 is adjusted through an adjusting mechanism 500 to adapt to inner and outer layers of sieves of different sizes.

[0102] Through the conveying device 001, more inner and outer layers of the sieve can be conveyed in a smaller space, improving the conveying efficiency and space utilization rate.

[0103] Embodiment 3:

[0104] As Figure 8 、 Figure 9 shown, the embodiment of the present application provides a production process of a double-layer sieve. In addition to including the above technical features, further, the connecting rod structure 400 includes:

[0105] Two rods 410, which are hinged;

[0106] Moving blocks 420, placed at both ends of the rod 410;

[0107] A first moving groove 430, placed on one side of the moving seat 200;

[0108] A second moving groove 440, placed on the other side of the moving seat 200;

[0109] A driving rod 450 for driving the moving block 420 to move;

[0110] Wherein, the rod 410 is disposed between the second moving groove 440 of the previous moving seat 200 and the first moving groove 430 of the subsequent moving seat 200, and the moving block 420 is connected to the rod 410 through a spherical joint.

[0111] The connecting rod structure 400 connects adjacent moving seats 200. When the moving seat 200 enters the folding area 101, under the action of the slideway groove 110 and the roller 120, the moving seat 200 rotates around the driving rod 450. At the same time, the driving rod 450 controls the movement of the moving block 420, so that the rod 410 rotates around the hinged position, controls adjacent moving seats 200 to approach each other. The pulling force when the moving seat 200 located in the folding area 101 moves is transmitted through the rod 410, so that the moving seat 200 can move cyclically on the conveyor frame 100. The first moving groove 430 and the second moving groove 440 are respectively disposed on both sides of the moving seat 200. The same rod 410 is connected between the second moving groove 440 of the previous moving seat 200 and the first moving groove 430 of the subsequent moving seat 200.

[0112] Embodiment 4:

[0113] As Figure 9 、 Figure 10 shown, the embodiment of the present application provides a production process of a double-layer sieve. In addition to including the above technical features, further, the driving rod 450 is installed on the slider 220. The driving rod 450 is provided with a driving groove 451. The moving seat 200 is connected to the driving rod 450 through a bearing. The moving block 420 is provided with a driving portion 421 adapted to the driving groove 451. The driving groove 451 is provided with a curve area 452 and an adjustment area 453.

[0114] When the moving seat 200 rotates relative to the driving rod 450, the driving portion 421 moves along the driving groove 451, so that the two driving portions 421 move closer to or away from each other. The moving block 420 moves simultaneously with the driving portion 421. The driving portion 421 is installed on the moving block 420 located on the first moving groove 430. When the driving portion 421 moves, the moving block 420 moves on the first moving groove 430. When the placing plate 300 is in a horizontal state, the moving blocks 420 located on the same moving groove approach each other. When the placing plate 300 rotates to be inclined, the moving blocks 420 located on the same moving groove move away from each other. When the driving portion 421 moves in the curve area 452, it can control the moving block 420 to move on the first moving groove 430.

[0115] After the moving seats 200 move out of the folding area 101, the pulling force between the moving seats 200 is transmitted through the chain 130. However, when the moving seats 200 move to both ends of the conveyor frame 100, the moving routes of the moving seats 200 are arc-shaped, and the distance between adjacent moving seats 200 changes. By means of the adjustment area 453, the driving part 421 can move freely along the first moving groove 430, ensuring that when the chain 130 pulls, the moving seats 200 can stably pass through the arc movement at both ends of the conveyor frame 100.

[0116] Embodiment 5:

[0117] As Figure 8 、 Figure 11 shown, the embodiment of the present application provides a production process of a double-layer sieve. In addition to including the above technical features, further, the placing plate 300 can be separated and includes a first side plate 310 and a second side plate 320, and the adjusting mechanism 500 can adjust both the first side plate 310 and the second side plate 320.

[0118] The first side plate 310 and the second side plate 320 respectively place the inner and outer layers of two sieves. By adjusting the first side plate 310 and the second side plate 320 through the adjusting mechanism 500 to adapt to the inner and outer layers of sieves of different sizes, it is possible to realize the conveyance of the inner and outer layers of the sieve without changing the width of the conveyor frame 100.

[0119] Embodiment 6:

[0120] As Figure 11 shown, the embodiment of the present application provides a production process of a double-layer sieve. In addition to including the above technical features, further, the adjusting mechanism 500 includes:

[0121] An adjusting motor 230;

[0122] An adjusting seat 240, placed between the placing plate 300 and the moving seat 200, and the placing plate 300 is hinged to the adjusting seat 240;

[0123] An adjusting lead screw 231, installed on the moving seat 200, and the adjusting lead screw 231 is connected to the adjusting motor 230 through gears;

[0124] A winding wheel 241, installed on the adjusting seat 240, and a connecting rope is wound around the winding wheel 241;

[0125] A first winding wheel 242, placed on the adjusting seat 240;

[0126] A second winding wheel 243, placed on the moving seat 200;

[0127] A stabilizing seat 244, placed on the adjusting seat 240;

[0128] The first spring 245 is disposed between the stable seat 244 and the adjustment seat 240;

[0129] The torsion spring is disposed between the winding wheel 241 and the adjustment seat 240;

[0130] The first gear 250 is mounted on the winding wheel 241;

[0131] The incomplete tooth portion 251 is disposed on the placement plate 300 and is adapted to the first gear 250;

[0132] Wherein, the adjustment seat 240 is adapted to the adjustment screw rod 231, the connecting rope is wound around the first winding wheel 242 and the second winding wheel 243, and the end of the connecting rope is installed and connected to the stable seat 244.

[0133] The adjustment motor 230 drives the adjustment screw rod 231 to rotate, the screw rod drives the adjustment seat 240 to move, the adjustment seat 240 is hinged to the placement plate 300, the movement adjustment of the placement plate 300 is realized, the first side plate 310 and the second side plate 320 are respectively provided with their own adjustment seats 240, when the two adjustment seats 240 move away from each other, the connecting rope is unwound from the winding wheel 241 under the pulling of the first winding wheel 242 and the second winding wheel 243, and the winding wheel 241 rotates under the pulling of the connecting rope, at the same time the first gear 250 rotates, the first gear 250 drives the incomplete tooth portion 251 to rotate, the incomplete tooth portion 251 is disposed on the hinge shaft of the placement plate 300, thereby controlling the rotation of the first side plate 310 and the second side plate 320, so that an included angle is formed between the first side plate 310 and the second side plate 320. When the adjustment seats 240 move closer to each other, the winding wheel 241 is reset by the torsion spring, the connecting rope is wound around the winding wheel 241 again, and the connecting rope can be kept in a tension state through the stable seat 244 and the first spring 245, ensuring the stable unwinding and winding of the connecting rope.

[0134] The torsion spring is not shown in the figure.

[0135] Embodiment 7:

[0136] As Figure 12 shown, the embodiment of the present application provides a production process of a double-layer sieve, in addition to including the above technical features, further, the placement plate 300 includes:

[0137] The limiting portion 301 is disposed on the upper surface of the placement plate 300;

[0138] The support rod 330 is mounted on the first side plate 310;

[0139] The limiting wheel 340;

[0140] Wherein, the second side plate 320 is provided with a support groove 350 adapted to the limiting wheel 340.

[0141] When the winding wheel 241, the first winding wheel 242, and the first gear 250 are only installed on the corresponding adjusting seat 240 of the second side plate 320, after the adjusting seat 240 moves and rotates, it drives the limiting wheel 340 through the support groove 350, causing the first side plate 310 to rotate. It is possible to form an angle between the first side plate 310 and the second side plate 320, and the inner and outer layers of the sieve placed on the first side plate 310 and the second side plate 320 are staggered. It is possible to place more inner and outer layers of the sieve. The limiting part 301 prevents the inner and outer layers of the sieve from slipping off the first side plate 310 and the second side plate 320. The limiting wheel 340 is installed on the support rod 330, improving the structural stability between the first side plate 310 and the second side plate 320.

[0142] Example 8:

[0143] The embodiment of the present application provides a production process for a double-layer sieve. In addition to including the above technical features, further, on the conveying device 001 corresponding to the press, all the inner layers of the sieve are placed on the first side plate 310, and all the outer layers of the sieve are placed on the second side plate 320; or, all the outer layers of the sieve are placed on the first side plate 310, and all the inner layers of the sieve are placed on the second side plate 320.

[0144] By placing different inner and outer layers of the sieve on the first side plate 310 and the second side plate 320, when the inner layer and the outer layer of the sieve are pressed tightly in step S6, it is possible to pick up the inner layer and the outer layer of the sieve at one time, reducing the number of times of picking up by the staff and improving the production efficiency of the double-layer sieve.

[0145] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed. It may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0146] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. Production process of a double-layer sieve, characterized in that, the specific steps include: S1. Select a metal coil as the raw material, feed the coil into a circular coiling mechanism for cutting, and laser-weld the head and tail of the cut metal material to obtain a primary outer layer product and a primary inner layer product; S2. Through the operation of a hydraulic press, use a flanging die to fold one side of the primary inner layer product inward to obtain a secondary inner layer product, and use a curling die to form a curl on the other side of the secondary inner layer product outward to obtain a tertiary inner layer product; S3. Use a rolling device to form an inner reinforcing rib protruding outward on the tertiary inner layer product near the flanged side to obtain the inner layer of the sieve; S4. Through the operation of a hydraulic press, use a flanging die to fold one side of the primary outer layer product inward to obtain a secondary outer layer product, use a secondary flanging die to perform secondary flanging on the flange of the secondary outer layer product to make it have a V-shaped structure to obtain a tertiary outer layer product, and use a necking die to neck the flanged side of the tertiary outer layer product inward to obtain a quaternary outer layer product; S5. Use a rolling device to form an outer reinforcing rib protruding outward on the quaternary outer layer product near the flanged side to obtain the outer layer of the sieve; S6. Place the inner layer of the sieve upside down with the open end facing down, place the sieve mesh on the inner layer of the sieve, put the outer layer of the sieve on the inner layer of the sieve, and pre-press it through a press to make the sieve mesh taut on the inner layer of the sieve. Then apply glue to the place where the sieve mesh abuts against the inner layer of the sieve, and continue to use the press to press the inner layer and the outer layer of the sieve tightly so that the sieve mesh is clamped between the inner layer and the outer layer of the sieve; When processing the inner and outer layers of the sieve, a conveying device (001) is used for conveying. The conveying device (001) includes: a conveying frame (100); a moving seat (200), which is installed on the conveying frame (100) through a guide rail (210) and a slider (220). The moving seat (200) is provided with a placing plate (300); a slideway groove (110), which is placed on the conveying frame (100); rollers (120), which are installed on the moving seat (200) and are adapted to the slideway groove (110); a chain (130), which is used for installing and connecting all the moving seats (200); a driving device (140), which is used for driving the chain (130) to move; a connecting rod structure (400), which is placed between adjacent moving seats (200); an adjusting mechanism (500), which is used for adjusting the placing plate (300); wherein, the conveying device (001) is provided with a folding area (101). The moving seats (200) in the folding area (101) are inclined. The slideway groove (110) corresponding to the folding area (101) is smoothly transitioned with the slideway groove (110) outside the folding area (101). The placing plate (300) is provided with two and is placed side by side on the moving seat (200).

2. The production process of the double-layer sieve according to claim 1, characterized in that, the connecting rod structure (400) includes: rods (410), two of which are provided and hinged; moving blocks (420), which are placed at both ends of the rods (410); a first moving groove (430), which is placed on one side of the moving seat (200); The second moving groove (440) is disposed on the other side of the moving seat (200); The driving rod (450) is used to drive the moving block (420) to move; Wherein, the rod member (410) is disposed between the second moving groove (440) of the previous moving seat (200) and the first moving groove (430) of the subsequent moving seat (200), and the moving block (420) is connected to the rod member (410) through a spherical joint.

3. The production process of the double-layer sieve according to claim 2, characterized in that The driving rod (450) is installed on the slider (220), the driving rod (450) is provided with a driving groove (451), the moving seat (200) is connected to the driving rod (450) through a bearing, the moving block (420) is provided with a driving portion (421) adapted to the driving groove (451), and the driving groove (451) is provided with a curve area (452) and an adjustment area (453).

4. The production process of the double-layer sieve according to claim 1, characterized in that The placement plate (300) can be separated and includes a first side plate (310) and a second side plate (320), and the adjustment mechanism (500) can adjust both the first side plate (310) and the second side plate (320).

5. The production process of the double-layer sieve according to claim 4, characterized in that The adjustment mechanism (500) includes: An adjustment motor (230); An adjustment seat (240) is disposed between the placement plate (300) and the moving seat (200), and the placement plate (300) is hinged to the adjustment seat (240); An adjustment screw rod (231) is installed on the moving seat (200), and the adjustment screw rod (231) is connected to the adjustment motor (230) through a gear; A winding wheel (241) is installed on the adjustment seat (240), and a connecting rope is wound around the winding wheel (241); A first winding wheel (242) is disposed on the adjustment seat (240); A second winding wheel (243) is disposed on the moving seat (200); A stable seat (244) is disposed on the adjustment seat (240); A first spring (245) is disposed between the stable seat (244) and the adjustment seat (240); A torsion spring is disposed between the winding wheel (241) and the adjustment seat (240); A first gear (250) is installed on the winding wheel (241); An incomplete tooth portion (251) is disposed on the placement plate (300) and is adapted to the first gear (250); Wherein, the adjustment seat (240) is adapted to the adjustment screw rod (231), the connecting rope is wound around the first winding wheel (242) and the second winding wheel (243), and the end of the connecting rope is installed and connected to the stable seat (244).

6. The production process of the double-layer sieve according to claim 5, characterized in that The placement plate (300) includes: A limiting portion (301) is disposed on the upper surface of the placement plate (300); A support rod (330) is installed on the first side plate (310); A limiting wheel (340); Wherein, the second side plate (320) is provided with a support groove (350) adapted to the limiting wheel (340).

7. The production process of the double-layer sieve according to claim 4, characterized in that, on the conveying device (001) corresponding to the press, all the inner layers of the sieve are placed on the first side plate (310), and all the outer layers of the sieve are placed on the second side plate (320); or, all the outer layers of the sieve are placed on the first side plate (310), and all the inner layers of the sieve are placed on the second side plate (320).

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