Spectacle case iron sheet production equipment

Abstract

The invention relates to spectacle case iron sheet production equipment, and relates to the technical field of spectacle case production equipment.The spectacle case iron sheet production equipment is characterized in that a forming device forms a direction mark on the surface of an iron sheet through a punching machine and punches the iron sheet into a box, and automatic discharging of the iron sheet box is achieved in combination with a first blowing assembly; the transfer device ensures that the punching surfaces of the iron sheet boxes face the same direction through multi-stage error correction screening; according to the punching device, non-contact type suspension positioning and stable fixing of the iron sheet box are achieved through the synergistic effect of the air suspension positioning module and the negative pressure adsorption module, and high-precision punching is completed in cooperation with guiding linkage of the first punching die and the second punching die and a containing plate driven by a telescopic air cylinder. According to the production line, through the full-process automatic design of forming, transferring and punching, key technologies such as direction marking, multi-stage screening, non-contact positioning and self-adaptive clamping are combined, and high precision, high efficiency and low loss of glasses box iron sheet production are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of eyeglass case production equipment, and in particular to an equipment for producing eyeglass case iron sheets. Background Art

[0002] The inner shell of the glasses case is a tool used to hold glasses for easy carrying. In the production process of the inner shell of the glasses case, the inner shell of the glasses case is first produced, and then the inner shell of the glasses case is assembled and packaged to form a complete inner shell of the glasses case.

[0003] In the related art, the production of the iron sheet of the glasses case needs to go through multiple processes, and manual intervention is required to transfer the iron plate of the glasses case between each process. In addition, during the production process, it is difficult to ensure the mechanical orientation of the glasses case, resulting in incorrect holes in the iron sheet of the glasses case. The process is cumbersome and the production efficiency is low. Summary of the invention

[0004] In order to improve production efficiency, the present application provides a production device for eyeglass case iron sheets.

[0005] The present application provides a production equipment for eyeglass case iron sheet adopts the following technical solution: A production device for a spectacle case iron sheet, comprising: A forming device, used to form direction marks on the surface of the iron sheet and to punch and form it into an iron sheet box; The transfer device includes a multi-stage conveying mechanism and a direction correction module, which is used to screen and adjust the orientation of the tin boxes; A punching device, comprising: A fixed plate and a punching cylinder, wherein a first punching die and a second punching die are arranged opposite to each other on the fixed plate, a guide rod is arranged between the first punching die and the second punching die, and the first punching die realizes reciprocating punching motion through the guide rod and the punching cylinder; A telescopic cylinder is arranged on the fixed plate, and the telescopic cylinder is arranged to receive the placement plate of the tin box, and a clearance groove is opened on the placement plate, and the second punching die extends into the clearance groove; A reset plate and a plurality of positioning plates are matched with the reset plate and a plurality of positioning plates to form a punching station on the placement plate. The iron box is placed in the punching station. The telescopic cylinder drives the iron box in the punching station to abut against the second punching die.

[0006] By adopting the above technical solution, the forming device forms direction marks on the surface of the iron sheet and punches them through the coordinated action of the punching machine and the marking block, thereby ensuring the consistency of the direction of the iron box in the subsequent process and reducing the cost of manual adjustment.

[0007] The transfer device realizes automatic screening and direction correction through a multi-level transmission mechanism and a direction correction module, which significantly improves the orientation accuracy of the punched surface of the tin box and reduces the defective rate.

[0008] The punching device realizes the precise positioning and stable punching of the iron box through the linkage design of the guiding rods of the first punching die and the second punching die, combined with the positioning of the placing plate and the reset plate driven by the telescopic cylinder, improving the hole position accuracy and processing efficiency.

[0009] Optionally, a limiting plate is provided on the fixing plate, and a limiting notch is provided on the limiting plate. After the placing plate moves, it extends into the limiting notch, and the placing plate abuts against the second punching die and the limiting plate.

[0010] By adopting the above technical solution, through the cooperation of the limiting notch on the limiting plate and the placing plate, it is ensured that the placing plate is precisely abutted against the second punching die during the punching process, avoiding punching misalignment caused by mechanical vibration or displacement deviation, and further improving the punching stability and the die life.

[0011] Optionally, the punching device further includes: an air suspension positioning module, including a limiting rod and an air outlet cylinder. The limiting rod is arranged above the placing plate, and the air outlet cylinder is connected with a blow pipe embedded in the placing plate through a pipeline, and the air outlet cylinder drives the iron box to suspend and contact the limiting rod; a negative pressure adsorption module, including a negative pressure cylinder, and the negative pressure cylinder is connected with a negative pressure pipe embedded in the reset plate through a pipeline, and the negative pressure cylinder drives the iron box to abut against the reset plate.

[0012] By adopting the above technical solution, the air suspension positioning module uses the non-contact suspension positioning of the blow pipe and the limiting rod to eliminate the friction between the iron box and the placing plate, prevent surface scratches, and at the same time realize rapid alignment and positioning.

[0013] The negative pressure adsorption module adsorbs the iron box through the negative pressure pipe to tightly abut against the reset plate, providing firm fixation during punching, avoiding displacement or vibration of the iron box during the stamping process, and ensuring the consistency of the hole positions.

[0014] Optionally, a connecting plate is provided on the placing plate, and a number of connecting rods corresponding to the number of positioning plates are provided on the connecting plate. A positioning through groove is opened in the connecting rod, and the positioning plate is slidably connected in the positioning through groove. The inner arc of the positioning plate is connected with a positioning block with an "L" - shaped cross - section, and the positioning block abuts against the iron box. A driving rod is fixedly connected to the positioning block, and an inclined driving groove is opened on the connecting rod. The bottom surface of the driving groove has an inclined angle, so that the movement track of the driving rod is a combined displacement including a horizontal component and a vertical component.

[0015] By adopting the above technical solution, through the sliding of the driving rod along the inclined driving groove, the "L" - shaped positioning block is driven to generate a combined displacement in both the horizontal and vertical directions, automatically adapting to iron boxes of different sizes and completing self - adaptive clamping and positioning, improving the equipment compatibility and positioning accuracy, and reducing the need for manual adjustment.

[0016] Optionally, the forming device includes: a coil placing rack, on which a material placing rod is rotatably connected, and an iron sheet coil is sleeved on the material placing rod; a feeding table, on which a punching machine and a first air blowing assembly are arranged. The iron sheet on the iron sheet coil extends into the punching machine, and the punching machine is used to punch the iron sheet into an iron box, and the iron box enters the transfer device through the air flow generated by the first air blowing assembly.

[0017] By adopting the above technical solution, the continuous feeding design of the coil placing rack, the iron sheet coil and the feeding table in the forming device, combined with the automatic material blowing function of the first air blowing assembly, realizes the full-process automated production of iron sheets from coils to punched boxes, greatly improving the production efficiency and reducing the frequency of manual intervention.

[0018] Optionally, the feeding table is provided with a feeding cylinder, on which a feeding plate is arranged. The feeding cylinder drives the feeding plate to move towards or away from the coil placing rack. A clamping plate is slidably connected to the feeding plate, and the iron sheet passes through between the feeding plate and the clamping plate. A clamping cylinder is arranged on the feeding plate, and the clamping cylinder drives the clamping plate to clamp the iron sheet.

[0019] By adopting the above technical solution, the linkage control of the feeding cylinder and the clamping cylinder, and the bilateral clamping and fixing of the iron sheet by the clamping plate ensure that the iron sheet has no deviation or loosening during the feeding process, guaranteeing the positioning accuracy and finished product quality in the stamping and forming stage.

[0020] Optionally, the multi-stage conveying mechanism includes a vibrating disk and a conveyor belt. A screening module is arranged on the conveyor belt, and the vibrating disk and the screening module cooperate to form a double screening structure; the direction correction module includes a visual detection component and a grasping and rotating component, and the visual detection component drives the grasping and rotating component to adjust the direction of the iron box in real time according to the marking recognition result.

[0021] By adopting the above technical solution, the vibrating disk and the screening module automatically eliminate the stacked, reversed or abnormally positioned iron boxes through multi-stage screening of mechanical vibration, arc-shaped baffles and the second air blowing assembly, reducing the workload of manual sorting.

[0022] The visual detection and the grasping and rotating component ensure that the punching surfaces of all iron boxes face the same direction through image recognition and real-time direction adjustment, fundamentally solving the problem of punching failure caused by incorrect direction.

[0023] Optionally, the transfer device further includes a receiving box, which is connected to the forming device and the vibrating disk through a conveyor belt; the screening module includes an arc-shaped baffle, a height limiting rod and a second air blowing assembly. The second air blowing assembly cooperates with the arc-shaped baffle to blow the abnormal products into the receiving box, and the height limiting rod cooperates with the conveyor belt to push the abnormal products into the receiving box.

[0024] By adopting the above technical solutions, the cooperation between the material receiving box and the second air blowing assembly directly blows the screened defective products into the material receiving box and recycles them through the conveyor belt in a cycle, realizing the automatic separation and centralized treatment of defective products, avoiding line blockage, and at the same time reducing the risk of waste materials mixing into qualified products. In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the full-process automated design of forming - transfer - punching, and combined with key technologies such as direction marking, multi-level screening, non-contact positioning, and adaptive clamping, the present application achieves high precision, high efficiency, and low loss in the production of spectacle case iron sheets; 2. Through the coordinated action of the punching machine, marking block, and direction correction module, a direction mark is formed on the iron sheet surface and punched into shape, ensuring the consistency of the iron sheet box direction in subsequent processes, avoiding incorrect punching of the spectacle case iron sheet, and reducing the manual adjustment cost. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the present application; Figure 2 is the overall structural schematic diagram of the present application; Figure 3 is the structural schematic diagram of the present application, mainly showing the transfer device and the punching device; Figure 4 is the structural schematic diagram of the present application, mainly showing the punching device; Figure 5 is the exploded structural schematic diagram of the punching device in the present application; Figure 6 is Figure 5 the partial enlarged schematic diagram of part A in Figure 7 is the structural schematic diagram of the present application, mainly showing the punching cylinder; Figure 8 is Figure 7 the partial enlarged schematic diagram of part B in

[0026] Description of the drawings: 1. Forming device; 101. Rolling rack; 102. Material placement rod; 103. Guide frame; 104. Feeding table; 105. Feeding cylinder; 106. Feeding plate; 107. Clamping cylinder; 108. Clamping plate; 109. Material limit plate; 110. Punching machine; 111. First blowing assembly; 112. Marking member; 2. Transfer device; 201. First conveyor belt; 202. First material stop plate; 203. Second material stop plate; 204. Material receiving box; 205. Second conveyor belt; 206. Vibrating plate; 207. Third conveyor belt; 208. Fourth conveyor belt; 209. Second blowing assembly; 210. Arc baffle; 211. Height limit rod; 212. Fifth conveyor belt; 213. Visual inspection assembly; 214. Grasping and rotating assembly; 215. Material stop slope; 216. Material stop block ; 217, push rod; 3, punching device; 301, fixed plate; 302, limit plate; 303, first mounting plate; 304, second mounting plate; 305, punching cylinder; 306, first punching die; 307, second punching die; 308, guide rod; 309, punching column; 310, guide plate; 311, telescopic cylinder; 312, placement plate; 313, connecting plate; 314, reset spring; 315, reset plate; 316, first clamping plate; 317, second clamping plate; 318, negative pressure pipe; 319, negative pressure cylinder; 320, limit rod; 321, air outlet cylinder; 322, air blowing pipe; 323, connecting rod; 324, positioning cylinder; 325, positioning plate; 326, driving rod; 327, positioning block; 4, make way groove; 5, positioning through groove; 6, driving groove. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0028] A production equipment for glasses case iron sheet, referring to Figure 1 , including a forming device 1, a transfer device 2, and a punching device 3, wherein the forming device 1 is used to make iron boxes by stamping iron sheets, the transfer device 2 is used to screen the iron boxes multiple times to ensure that the punching surfaces of the iron boxes are in the same direction, and the punching device 3 is used to punch holes on the punching surfaces of the iron boxes.

[0029] Reference Figure 1 , Figure 2, the forming device 1 includes a coil placing rack 101. A material placing rod 102 is rotatably connected to the coil placing rack 101. A sheet iron coil formed by winding sheet iron is sleeved on the material placing rod 102. A guiding rack 103 and a feeding table 104 are installed on one side of the coil placing rack 101. The sheet iron passes through the guiding rack 103 and extends into the feeding table 104. Feeding cylinders 105 are fixedly connected to both sides of the feeding table 104, and the output rods of the feeding cylinders 105 are installed towards or away from the coil placing rack 101. A feeding block is fixedly connected to the output rod of the feeding cylinder 105.

[0030] A feeding plate 106 is fixedly connected between the two feeding blocks. Clamping cylinders 107 are fixedly connected to both sides of the feeding plate 106 for the sheet iron. And a clamping plate 108 is fixedly connected to the output rod of the clamping cylinder 107. The sheet iron is arranged between the clamping plate 108 and the feeding plate 106, so that the clamping cylinder 107 drives the clamping plate 108 to slide towards the feeding plate 106 to clamp and fix both sides of the sheet iron.

[0031] A limiting plate 109 is fixedly connected to the feeding table 104, and the limiting plate 109 is located on the side of the feeding clamping plate away from the material placing rack. The sheet iron passes through between the limiting plate 109 and the feeding table 104. At the same time, a marking block is fixedly connected to the limiting plate 109, and a marking piece 112 is detachably connected to the marking block. The marking piece 112 is used for scribing and marking the sheet iron and distinguishing the direction after the sheet iron is stamped into a box through the marking.

[0032] A punching machine 110 is fixedly connected to the feeding table 104, and the punching machine 110 is located on the side of the limiting plate 109 away from the feeding clamping plate. The sheet iron extends into the punching machine 110 under the action of the feeding clamping plate, and the punching machine 110 punches the sheet iron into a sheet iron box. A first blowing assembly 111 is fixedly connected to the feeding table 104 on the side close to the punching machine 110. The first blowing assembly 111 continuously blows air to the punching machine 110 from the side of the punching machine 110, so as to blow the formed sheet iron box into the transfer device 2 and blow out the waste after punching from the punching machine 110 at the same time.

[0033] Refer to Figure 2 , Figure 3 , the transfer device 2 includes a first conveyor belt 201 arranged on the side of the punching machine 110 away from the first blowing assembly 111. A first baffle 202 is fixedly connected to the side of the first conveyor belt 201 away from the punching machine 110. At the same time, a second baffle 203 is fixedly connected to the side of the first conveyor belt 201 close to the punching machine 110. The first baffle 202 is used for receiving the sheet iron box blown out by the first blowing assembly 111, and the second baffle 203 is used for preventing the sheet iron box from falling off the first conveyor belt 201.

[0034] The discharge end of the first conveyor belt 201 is connected to a receiving box 204. A second conveyor belt 205 is fixedly connected inside the receiving box 204, and the feeding end of the second conveyor belt 205 extends into the receiving box 204. In addition, the inner wall of the receiving box 204 is inclined towards the second conveyor belt 205, so that the iron boxes located inside the receiving box 204 slide towards the second conveyor belt 205. The discharge end of the second conveyor belt 205 is connected to a vibrating bowl 206, and the discharge port of the vibrating bowl 206 is connected to a third conveyor belt 207, and a fourth conveyor belt 208 is installed below the third conveyor belt 207. Among them, the vibrating bowl 206 is used to turn the iron box so that the bottom of the iron box faces upwards when it enters the third conveyor belt 207. At the same time, the vibrating bowl 206 can convey multiple overlapping iron boxes or iron boxes with their sides abutting against the vibrating bowl 206 into the fourth conveyor belt 208 and send them back into the receiving box 204 through the fourth conveyor belt 208.

[0035] A detection module is installed on the third conveyor belt 207. The detection module includes an arc-shaped baffle 210 fixedly connected to the third conveyor belt 207. A second air blowing assembly 209 fixedly connected to the third conveyor belt 207 is installed on one side of the arc-shaped baffle 210, and the second air blowing assembly 209 continuously blows air on the third conveyor belt 207. The iron box slides along the arc-shaped baffle 210 under the drive of the third conveyor belt 207 and makes the iron box slide towards the edge of the third conveyor belt 207 on the side close to the receiving box 204. When an iron box with its bottom abutting against the third conveyor belt 207 passes by, the second air blowing assembly 209 blows the iron box into the receiving box 204. In addition, the detection module also includes a height limiting rod 211, and the height limiting rod 211 is inclined. When the stacked iron boxes pass by the height limiting rod 211, the stacked iron boxes fall into the receiving box 204 under the action of the height limiting rod 211 and the third conveyor belt 207.

[0036] The discharge end of the third conveyor belt 207 is connected to a fifth conveyor belt 212. A visual detection component 213 and a grasping and rotating component 214 are installed on the fifth conveyor belt 212. The visual detection component 213 is used to detect whether there is a mark at a certain place on the surface of the passing iron box. The grasping and rotating component 214 grasps and rotates the iron box where the mark does not exist at the detection place, so that the marks of the iron boxes face the same direction, and this ensures that the punching surfaces of the iron boxes face the same direction.

[0037] Refer to Figure 1 、 Figure 3, the punching device 3 is installed on one side at the discharge end of the fifth conveyor belt 212. A material retaining slope 215 is fixedly connected to one side of the fifth conveyor belt 212 close to the discharge end, and a material retaining block 216 is fixedly connected to the discharge end of the fifth conveyor belt. The material retaining slope 215 and the material retaining block 216 cooperate to form a pre-punching area on the fifth conveyor belt 212. In addition, a pushing rod 217 is fixedly connected to the side of the fifth conveyor belt 212 away from the punching device 3, and the pushing rod 217 is used to push the iron box in the pre-punching area into the punching device 3.

[0038] Refer to Figure 3 , Figure 4 , Figure 5 , the punching device 3 includes a fixing plate 301. Limiting plates 302 are fixedly connected to both sides of the fixing plate 301. A first mounting plate 303 is fixedly connected between the two limiting plates 302, and the first mounting plate 303 is arranged on the side of the fixing plate 301 away from the fifth conveyor belt 212. A punching cylinder 305 is fixedly connected to the side of the first mounting plate 303 away from the fifth conveyor belt 212. The output rod of the punching cylinder 305 penetrates through the first mounting plate 303, and a first punching die 306 is fixedly connected to the output rod of the punching cylinder 305. In addition, a second mounting plate 304 is fixedly connected to the side of the fixing plate 301 close to the fifth conveyor belt 212, and two guide rods 308 penetrating through the first punching die 306 are fixedly connected to the second mounting plate 304. The guide rods 308 are fixedly connected to the first mounting plate 303. At the same time, the first punching die 306 is slidably connected to the guide rods 308.

[0039] A number of punching columns 309 are fixedly connected to the side of the first punching die 306 close to the second mounting plate 304. In addition, a second punching die 307 is fixedly connected to the side of the second mounting plate 304 close to the first punching die 306, and a guide plate 310 is fixedly connected to the side of the second punching die 307 close to the first punching die 306. A number of through holes are formed in both the second punching die 307 and the guide plate 310. Under normal conditions, a number of punching columns 309 pass through the corresponding through holes in the guide plate 310. During punching, the punching cylinder 305 pushes the punching columns 309 into the corresponding through holes in the second punching die 307.

[0040] The fixed plate 301 is fixedly connected with a telescopic cylinder 311 on the side of the second mounting plate 304 away from the first mounting plate 303, and a placement plate 312 is fixedly connected to the output rod of the telescopic cylinder 311. The side of the placement plate 312 away from the fixed plate 301 is flush with the surface of the pre-punching area, and an elastic contact surface is provided on the surface of the placement plate 312. A clearance groove 4 is provided on the placement plate 312, and the second punching die 307 extends into the clearance groove 4, and the plane of the second punching die 307 away from the fixed plate 301 is flush with the plane of the placement plate 312. In addition, a limiting notch is provided on the limiting plate 302 set away from the fifth conveyor belt 212, and the telescopic cylinder 311 drives the placement plate 312 to slide toward the fixed plate 301, so that the placement plate 312 extends into the limiting notch and conflicts with the upper end surface of the second mounting plate 304 and the above-mentioned limiting plate 302, and at the same time, the second punching die 307 is penetrated with a clearance groove 4.

[0041] The upper end surface of the placement plate 312 is fixedly connected to a connecting plate 313, and two return springs 314 are fixedly connected to the connecting plate 313. The return spring 314 is fixedly connected to a return plate 315, and the return plate 315 is slidably connected to the placement plate 312. The side of the return plate 315 away from the fifth conveyor belt 212 is rotatably connected to a first elastic clamping plate 316. Two negative pressure pipes 318 are embedded in the return plate 315, and the negative pressure pipe 318 is connected to a negative pressure cylinder 319, and the negative pressure cylinder 319 is fixedly connected to the fixed plate 301. In addition, the surface of the return plate 315 is evenly coated with an anti-skid coating.

[0042] Two limit rods 320 are fixedly connected to the upper end surface of the connecting plate 313, and an air outlet cylinder 321 is fixedly connected to the fixed plate 301. The air outlet cylinder 321 is connected to a blowing pipe 322 through a soft leather tube, and the blowing pipe 322 is embedded in the placement plate 312. When the iron box enters the placement plate 312 driven by the pushing rod 217, the iron box abuts against the limit rod 320 under the action of the blowing pipe 322, and the iron box is suspended in the air at this time.

[0043] The connecting plate 313 is fixedly connected to two connecting rods 323, and the two limiting rods 320 are located between the two connecting rods 323. A positioning cylinder 324 is fixedly connected to the connecting rod 323, and the output rod of the positioning cylinder 324 is fixedly connected to a positioning plate 325. In addition, a positioning slot 5 is provided on the connecting rod 323, and the positioning plate 325 is slidably arranged in the positioning slot 5. At the same time, the two positioning plates 325 cooperate with the reset plate 315 to form a punching station on the placement plate 312, and a second elastic positioning plate 317 is rotatably connected to the positioning plate 325 away from the fifth conveyor belt 212.

[0044] Reference Figure 6 , Figure 7 , Figure 8, a driving groove 6 is formed in the connecting plate 313. The driving groove 6 is obliquely formed from the end of the connecting rod 323 away from the connecting plate 313 towards the connecting plate 313 and the limiting rod 320, and the bottom of the driving groove 6 is provided with an inclined surface obliquely arranged from the side away from the connecting plate 313 towards the connecting plate 313 and the placing plate 312. A positioning block 327 is slidably connected in the positioning plate 325, and the positioning block 327 is a strip-shaped plate with a cross-section in the shape of an "L". A driving rod 326 is fixedly connected to the positioning block 327. One end of the driving rod 326 is slidably connected in the driving groove 6 and slides along the bottom of the driving groove 6.

[0045] The implementation principle of the embodiment of the present application is as follows: The clamping cylinder 107 drives the clamping plate 108 to clamp and fix the iron sheet. After fixing, the feeding cylinder 105 drives the feeding plate 106 to move away from the iron sheet roll, so that the iron sheet extends into the punching machine 110. And during this process, the marking block marks the unpunched iron sheet, so that marks are left on the surface of the iron sheet after it is punched into an iron box.

[0046] The iron box moves towards the first conveyor belt 201 under the action of the first air blowing assembly 111, and then enters the vibrating disk 206 through the receiving box 204 and the second conveyor belt. Then, after multiple and multiple error corrections by the vibrating disk 206, the inspection module, the visual detection assembly 213, and the grasping and rotating assembly 214, it is transferred to the pre-punching area.

[0047] The driving push rod 217 pushes the iron box in the pre-punching area into the placing plate 312. And during this process, the air blowing pipe 322 continuously blows air towards the iron box, so that the iron box floats and abuts against the limiting rod 320. In addition, when the iron box enters the placing plate 312, the negative pressure cylinder 319 rotates, so that the negative pressure pipe 318 on the reset plate 315 adsorbs the iron box, and cooperates with the first and second clamping plates 317 to prevent the iron box from moving excessively on the placing plate 312.

[0048] The positioning cylinder 324 drives the positioning plate 325 to slide towards the connecting plate 313, so that the driving rod 326 slides along the driving groove 6 and the bottom of the driving groove 6, resulting in the positioning block 327 moving towards the iron box and towards the fixing plate 301 at the same time, so as to fix the iron box on the placing plate 312 and adjust the position of the iron box at the same time to ensure that the iron box can be correctly punched.

[0049] Subsequently, the driving telescopic cylinder 311 moves the placing plate 312 towards the fixing plate 301, and makes the second punching die 307 extend into the iron box and abut against the inner wall of the iron box. Then, the punching cylinder 305 is driven to make the first punching die 306 penetrate through the side wall of the iron box and extend into the second punching die.

[0050] After the punching of the iron box is completed, the first punching die 306, the placing plate 312, and the positioning plate 325 are reset in sequence. At the same time, the negative pressure cylinder 319 is closed. At this time, the iron box floats under the action of the third blowing assembly and abuts against the limiting rod 320. Subsequently, the pushing rod 217 pushes another iron box in the pre-punching area into the placing plate 312 for positioning, and pushes the punched iron box out of the placing plate 312. Since the iron box floats during this process, the iron box can quickly rotate out of the placing plate 312, and at the same time, it can avoid friction between the iron box and the placing plate 312, preventing the iron box from being worn.

[0051] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A production equipment for eyeglass case iron sheet, characterized in that: include: A forming device (1) is used to form direction marks on the surface of the iron sheet and to stamp and form the iron sheet into an iron box; The transfer device (2) comprises a multi-stage transfer mechanism and a direction correction module, which is used to screen and adjust the orientation of the tin box; The punching device (3) comprises: A fixed plate (301) and a punching cylinder (305), wherein a first punching die (306) and a second punching die (307) are arranged opposite to each other on the fixed plate (301), a guide rod (308) is arranged between the first punching die (306) and the second punching die (307), and the first punching die (306) realizes reciprocating punching motion through the guide rod (308) and the punching cylinder (305); The fixed plate (301) is provided with a telescopic cylinder (311), and the telescopic cylinder (311) is provided with a placement plate (312) for receiving the tin box, and the placement plate (312) is provided with a clearance groove (4), and the second punching die (307) extends into the clearance groove (4); A reset plate (315) and a plurality of positioning plates (325), wherein the reset plate (315) and the plurality of positioning plates (325) cooperate with each other on the placement plate (312) to form a punching station, wherein the iron box is placed in the punching station, and the telescopic cylinder (311) drives the iron box in the punching station to abut against the second punching die (307).

2. The production equipment of the metal sheet for glasses case according to claim 1, characterized in that: A limiting plate (302) is arranged on the fixing plate (301), a limiting notch is arranged on the limiting plate (302), the placement plate (312) extends into the limiting notch after moving, and the placement plate (312) abuts against the second punching die (307) and the limiting plate (302).

3. The production equipment of the metal sheet for eyeglass cases according to claim 1, characterized in that: The punching device (3) further comprises: The air suspension positioning module comprises a limit rod (320) and an air outlet cylinder (321), wherein the limit rod (320) is arranged above the placement plate (312), and the air outlet cylinder (321) is connected to an air blowing pipe (322) embedded in the placement plate (312) through a pipeline, and the air outlet cylinder (321) drives the iron box to be suspended and in contact with the limit rod (320); The negative pressure adsorption module comprises a negative pressure cylinder (319), wherein the negative pressure cylinder (319) is connected to a negative pressure pipe (318) embedded in a reset plate (315) through a pipeline, and the negative pressure cylinder (319) drives the iron box to contact the reset plate (315).

4. The production equipment for the metal sheet of eyeglass cases according to claim 3, characterized in that: The placing plate (312) is provided with a connecting plate (313), and the connecting plate (313) is provided with a plurality of connecting rods (323) corresponding to the number of the positioning plates (325). A positioning slot (5) is provided in the connecting rod (323), and the positioning plate (325) is slidably connected in the positioning slot (5). A positioning block (327) with an L-shaped cross section is connected to the inner arc of the positioning plate (325), and the positioning block (327) is abutted against the iron box. A driving rod (326) is fixedly connected to the positioning block (327), and an inclined driving slot (6) is provided on the connecting rod (323). The bottom surface of the driving slot (6) has an inclined angle, so that the motion trajectory of the driving rod (326) is a composite displacement including a horizontal component and a vertical component.

5. The production equipment for eyeglass case iron sheet according to claim 1, characterized in that: The molding device (1) comprises: A coiling rack (101), the coiling rack (101) being rotatably connected to a material placing rod (102), the material placing rod (102) being sleeved with an iron coil; A feeding table (104) is provided with a punching machine (110) and a first blowing assembly (111), the iron sheet on the iron sheet roll is inserted into the punching machine (110), the punching machine (110) is used to punch the iron sheet into an iron sheet box, and the iron sheet box enters the transfer device (2) through the airflow generated by the first blowing assembly (111).

6. The production equipment for the metal sheet of eyeglass cases according to claim 5, characterized in that: The feeding platform (104) is provided with a feeding cylinder (105), and a feeding plate (106) is provided on the feeding cylinder (105). The feeding cylinder (105) drives the feeding plate (106) to move toward or away from the roll rack (101). A clamping plate (108) is slidably connected to the feeding plate (106), and the iron sheet is inserted between the feeding plate (106) and the clamping plate (108). A clamping cylinder (107) is provided on the feeding plate (106), and the clamping cylinder (107) drives the clamping plate (108) to clamp the iron sheet.

7. The production equipment for eyeglass case iron sheet according to claim 1, characterized in that: The multi-stage conveying mechanism comprises a vibrating plate (206) and a conveyor belt, a screening module is arranged on the conveyor belt, and the vibrating plate (206) cooperates with the screening module to form a double screening structure; The direction correction module comprises a visual detection component (213) and a grasping and rotating component (214). The visual detection component (213) drives the grasping and rotating component (214) to adjust the direction of the tin box in real time according to the mark recognition result.

8. The production equipment for eyeglass case iron sheet according to claim 7, characterized in that: The transfer device (2) further comprises a material receiving box (204), wherein the material receiving box (204) is connected to the forming device (1) and the vibration plate (206) via a conveyor belt; The inspection module comprises an arc-shaped baffle (210), a height-limiting rod (211), and a second air blowing assembly (209); the second air blowing assembly (209) cooperates with the arc-shaped baffle (210) to blow abnormal products into a receiving box (204); and the height-limiting rod (211) cooperates with a conveyor belt to push abnormal products into the receiving box (204).

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