Alternate feeding and discharging device with code scanning gun

Abstract

The utility model relates to the technical field of machining, in particular to an alternate feeding and discharging device with code scanning guns, which comprises a workbench, a first code scanning gun, a material taking and placing arm and a double-layer feeding table are arranged on the workbench, and the double-layer feeding table is matched with the material taking and placing arm for alternate feeding and discharging of products. The material taking and placing arm comprises an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and a material taking and placing assembly, the X-axis moving mechanism is provided with a second code scanning gun, the first code scanning gun and the second code scanning gun form a code scanning area, the material taking and placing assembly is provided with a first suction head and a second suction head, the first suction head is further provided with a rotating mechanism, and the second suction head is further provided with a second suction head. The rotating mechanism is used for driving the first suction head to rotate, when the first suction head sucks the materials, the rotating mechanism can drive the first suction head and the materials to rotate, when the two-dimensional codes on the materials appear in the code scanning area, code scanning can be completed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to an alternating loading and unloading device with a barcode scanning gun. Background Art

[0002] At present, with the analysis and tracing of problems in automated production and product production, materials usually need to be marked during the production process to facilitate subsequent material tracking and data analysis. Therefore, each component or intermediate product needs to be coded and marked to facilitate scanning and recording before production. There are two main ways of scanning in the prior art: the first is manual handheld barcode scanning, that is, manual handheld barcode scanning and then recording data. The second is to use a barcode scanning assembly line, that is, fix the barcode scanning lens above the assembly line, and the products are scanned in turn. However, the first manual scanning method currently has a high error rate and low efficiency. The second barcode scanning assembly line can only scan the same plane in turn, and the scanning cannot be completed when the QR code is not in the same plane. Utility Model Content

[0003] In view of the above technical problems existing in the prior art, the utility model provides an alternating loading and unloading device with a barcode scanning gun.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An alternating loading and unloading device with a barcode scanning gun comprises a workbench, on which a first barcode scanning gun, a material picking and unloading arm and a double-layer feeding table are arranged, the double-layer feeding table cooperates with the material picking and unloading arm to perform alternating loading and unloading of products, the material picking and unloading arm comprises an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and a material picking and unloading assembly, the X-axis moving mechanism is slidably connected to the Y-axis moving mechanism, the Z-axis moving mechanism is slidably connected to the X-axis moving mechanism, the material picking and unloading assembly is slidably connected to the Z-axis moving mechanism, the X-axis moving mechanism is provided with a second barcode scanning gun, the first barcode scanning gun and the second barcode scanning gun form a barcode scanning area, the material picking and unloading assembly is provided with a first suction head and a second suction head, the first suction head is also provided with a rotating mechanism, and the rotating mechanism is used to drive the first suction head to rotate.

[0006] Preferably, the Y-axis moving mechanism includes a first gantry and a second gantry, the first gantry and the second gantry are arranged on the workbench, the first gantry and the second gantry are arranged parallel to each other, the first gantry is provided with a first Y-axis driving slide rail, the first Y-axis driving slide rail is slidably connected to the first Y-axis slider, the second gantry is provided with a second Y-axis slide rail, the second Y-axis slide rail is slidably connected to the second Y-axis slider, and the X-axis moving mechanism includes a crossbeam, an X-axis driving slide rail and an X-axis slider, the X-axis driving slide rail is fixedly connected to the crossbeam, the X-axis slider is slidably connected to the X-axis driving slide rail, one end of the crossbeam is connected to the first Y-axis slider, and the other end is connected to the second Y-axis slider.

[0007] Preferably, the Z-axis moving mechanism includes a connecting plate, a Z-axis driving slide rail and a Z-axis slider, the Z-axis driving slide rail is arranged on the connecting plate, the Z-axis slider is slidably connected to the Z-axis driving slide rail, the second barcode scanning gun is arranged on the side wall of the connecting plate, and the opposite side of the connecting plate where the Z-axis driving slide rail is connected is fixedly connected to the X-axis slider.

[0008] Preferably, the material picking and placing assembly includes an extension plate, which is fixedly connected to the Z-axis slider, and the material picking and placing assembly also includes a first mounting bracket and a second mounting bracket, which are fixedly connected to the extension plate, the first mounting bracket includes a first upper mounting plate and a first lower mounting plate, the first upper mounting plate is slidably connected to the first lower mounting plate, and the first suction head is arranged on the first lower mounting plate, the second mounting bracket includes a second upper mounting plate and a second lower mounting plate, the second upper mounting plate is slidably connected to the second lower mounting plate, and the second suction head is arranged on the second lower mounting plate.

[0009] Preferably, a first drive motor is provided on the top of the first upper mounting plate, the first drive motor is provided with a first extension rod, a first buffer block is provided on the top of the first lower mounting plate, the first extension rod is connected to the first buffer block, a second drive motor is provided on the top of the second upper mounting plate, the second drive motor is provided with a second extension rod, a second buffer block is provided on the top of the second lower mounting plate, and the second extension rod is connected to the second buffer block.

[0010] Preferably, the rotating mechanism comprises a shell and a rotating shaft, the rotating shaft is arranged in the shell, one end of the rotating shaft is connected to the first suction head, and the rotating shaft drives the first suction head to rotate.

[0011] Preferably, the double-layer feeding table includes a first bottom plate, a second bottom plate, a first rodless cylinder and a second rodless cylinder. The first bottom plate and the second bottom plate are arranged parallel to each other, the first rodless cylinder and the second rodless cylinder are arranged parallel to each other, the first rodless cylinder connects the first bottom plate and the second bottom plate and is perpendicular to the first bottom plate and the second bottom plate, and the second rodless cylinder connects the first bottom plate and the second bottom plate and is perpendicular to the first bottom plate and the second bottom plate.

[0012] Preferably, the double-layer feeding platform also includes a first feed plate, a second feed plate and a side plate, a side plate slide rail is provided on the top of the side plate, and a side plate slider is slidably connected to the side plate slide rail, the first feed plate is connected to the first rodless cylinder, one end of the second feed plate is connected to the side plate slider, and the other end is connected to the second rodless cylinder, and the horizontal height of the first feed plate is lower than the horizontal height of the second feed plate.

[0013] Preferably, the first material conveying plate and the second material conveying plate are further provided with a material plate, and mounting columns are provided on the first material conveying plate and the second material conveying plate, and the material plate is connected to the first material conveying plate and the second material conveying plate via the mounting columns.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides an alternating loading and unloading device with a barcode scanning gun, comprising a workbench, on which a first barcode scanning gun, a material picking and unloading arm and a double-layer feeding table are arranged, the double-layer feeding table cooperates with the material picking and unloading arm to perform alternating loading and unloading of products, the material picking and unloading arm comprises an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and a material picking and unloading assembly, a second barcode scanning gun is arranged on the X-axis moving mechanism, the first barcode scanning gun and the second barcode scanning gun form a barcode scanning area, the material picking and unloading assembly is provided with a first suction head and a second suction head, the first suction head is also provided with a rotating mechanism, the rotating mechanism is used to drive the first suction head to rotate, when the first suction head sucks material, the rotating mechanism will drive the first suction head and the material to rotate, when the two-dimensional code on the material appears in the barcode scanning area, the barcode scanning can be completed, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of an alternating loading and unloading device with a barcode scanning gun in an embodiment.

[0017] Figure 2 It is a three-dimensional diagram of the material taking and placing arm in the embodiment.

[0018] Figure 3 It is a left view of the material taking and placing arm in the embodiment.

[0019] Figure 4 It is a three-dimensional diagram of material loading and unloading in the embodiment.

[0020] Figure 5 It is a three-dimensional diagram of the double-layer feeding platform in the embodiment.

[0021] Reference numerals: 1, workbench; 101, first barcode scanner;

[0022] 2. Material handling arm; 201. X-axis moving mechanism; 202. Beam; 203. X-axis driving slide rail; 204. X-axis slider; 205. Y-axis moving mechanism; 206. First gantry; 207. First Y-axis driving slide rail; 208. First Y-axis slider; 209. Second gantry; 210. Second Y-axis slide rail; 211. Second Y-axis slider; 212. Z-axis moving mechanism; 213. Connecting plate; 214. Z-axis driving slide rail; 215. Z-axis slider; 216. Second barcode scanner; 217. Material handling group Component; 218, extension plate; 219, first mounting bracket; 220, first upper mounting plate; 221, first drive motor; 222, first extension rod; 223, first lower mounting plate; 224, first buffer block; 225, first suction head; 226, second mounting bracket; 227, second upper mounting plate; 228, second drive motor; 229, second extension rod; 230, second lower mounting plate; 231, second buffer block; 232, second suction head; 233, rotating mechanism; 234, housing; 235, rotating shaft;

[0023] 3. Double-layer feeding platform; 301. First bottom plate; 302. Second bottom plate; 303. First rodless cylinder; 304. Second rodless cylinder; 305. Side plate; 306. Side plate slide rail; 307. Side plate slider; 308. First feed plate; 309. Second feed plate; 310. Material plate; 311. Mounting column. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0025] like Figures 1 to 5 As shown, an alternating loading and unloading device with a barcode scanner includes a workbench 1, on which a first barcode scanner 101, a double-layer feeding table 3 and a pick-up and discharge arm 2 are provided. The barcode scanner lens of the first barcode scanner 101 is aimed at the double-layer feeding table 3, and the pick-up and discharge arm 2 cooperates with the double-layer feeding table 3 to load small materials on the product. The pick-up and discharge arm 2 includes an X-axis moving mechanism 201, a Y-axis moving mechanism 205, a Z-axis moving mechanism 212 and a pick-up and discharge assembly 217. The X-axis moving mechanism 201 is slidably connected to the Y-axis moving mechanism 205, the Z-axis moving mechanism 212 is slidably connected to the X-axis moving mechanism 201, and the pick-up and discharge assembly 217 is slidably connected to the Z-axis moving mechanism 212.

[0026] The Y-axis moving mechanism 205 includes a first gantry 206 and a second gantry 209. The first gantry 206 and the second gantry 209 are arranged on the workbench 1. The first gantry 206 and the second gantry 209 are arranged parallel to each other. The first gantry 206 is provided with a first Y-axis driving rail 207, and the first Y-axis driving rail 207 is slidably connected to the first Y-axis slider 208. The second gantry 209 is provided with a second Y-axis rail 210, and the second Y-axis rail 210 is slidably connected to the first Y-axis slider 208. Connected to the second Y-axis slider 211, the X-axis moving mechanism 201 includes a beam 202, an X-axis driving slide rail 203 and an X-axis slider 204. The X-axis driving slide rail 203 is fixedly set on the beam 202, and the X-axis slider 204 is connected to the X-axis driving sliding. One end of the beam 202 is connected to the first Y-axis slider 208, and the end of the beam 202 away from the first Y-axis slider 208 is connected to the second Y-axis slider 211. The first Y-axis driving slide rail 207 drives the X-axis moving mechanism 201 to move along the Y-axis direction.

[0027] The Z-axis moving mechanism 212 includes a connecting plate 213, a Z-axis driving rail 214 and a Z-axis slider 215. The Z-axis driving rail 214 is fixedly arranged on the connecting plate 213. The Z-axis slider 215 is slidably connected to the Z-axis moving rail. The opposite side of the connecting plate 213 connected to the Z-axis driving rail 214 is fixedly connected to the X-axis slider 204. The X-axis driving rail 203 drives the Z-axis moving mechanism 212 to move along the X-axis direction. A second barcode scanning gun 216 is also arranged on the connecting plate 213. The second barcode scanning gun 216 is fixedly connected to the connecting plate 213. On the side wall, the scanning lens of the second barcode scanning gun 216 is also aimed at the double-layer feeding table 3. At this time, the first barcode scanning gun 101 and the second barcode scanning gun 216 form a scanning area. Since the Z-axis moving mechanism 212 is slidingly connected to the X-axis moving mechanism 201, and the X-axis moving mechanism 201 is also slidingly connected to the Y-axis moving mechanism 205, the Z-axis moving mechanism 212 moves along the X-axis and Y-axis, and the second barcode scanning gun 216 on the Z-axis moving mechanism 212 also moves along the X-axis and Y-axis with the Z-axis moving mechanism 212, increasing the scanning range of the second barcode scanning gun 216.

[0028] The material picking and placing assembly 217 includes an extension plate 218, a first mounting bracket 219 and a second mounting bracket 226. The first mounting bracket 219 and the second mounting bracket 226 are arranged in parallel at one end of the extension plate 218, and the other end of the extension plate 218 is connected to the Z-axis slider 215. The material picking and placing assembly 217 moves along the Z-axis direction under the drive of the Z-axis driving slide rail 214, and the Z-axis moving mechanism 212 can move along the X-axis and Y-axis, so the material picking and placing assembly 217 can move along the X-axis, Y-axis and Z-axis directions.

[0029] The first mounting bracket 219 is connected to a first suction head 225, and the second mounting bracket 226 is connected to a second suction head 232. The first mounting bracket 219 includes a first upper mounting plate 220 and a second mounting plate. The first suction head 225 is arranged on the first lower mounting plate 223. The second mounting bracket 226 includes a second upper mounting plate 227 and a second lower mounting plate 230. The second suction head 232 is arranged on the second lower mounting plate 230. The first upper mounting plate 220 and the first lower mounting plate 223 are slidably connected, and the second upper mounting plate 227 and the second lower mounting plate 230 are slidably connected. A first driving motor 221 is provided on the top of the first upper mounting plate 220, and the first driving motor 221 is provided with a first extension rod 222. A first buffer block 224 is provided on the top of the first lower mounting plate 223, and the first extension rod 222 is connected to the first buffer block 224. A second driving motor 228 is provided on the top of the second upper mounting plate 227, and the second driving motor 228 is provided with a second extension rod 229. A second buffer block 231 is provided on the top of the lower mounting plate 230, and the second extension rod 229 is connected to the second buffer block 231. Since the first buffer block 224 is provided on the first lower mounting plate 223, and the second buffer block 231 is provided on the second lower mounting plate 230, when the first suction head 225 and the second suction head 232 are moved to the double-layer feeding platform 3 to absorb materials, the first suction head 225 and the second suction head 232 will contact with the materials. At this time, the first buffer block 224 and the second buffer block 231 will reduce the downward pressure of the materials to prevent the materials from being damaged due to excessive downward pressure.

[0030] The material taking and placing assembly 217 also includes a rotating mechanism 233, which is arranged on the first lower mounting plate 223. The rotating mechanism 233 is connected to the first suction head 225 to drive the first suction head 225 to rotate. The rotating mechanism 233 includes a shell 234 and a rotating shaft 235. The rotating shaft 235 is arranged in the shell 234. One end of the rotating shaft 235 is connected to the first suction head 225 to drive the first suction head 225 to rotate. By arranging the rotating mechanism 233 on the first suction head 225, after the first suction head 225 absorbs the material, the rotating shaft 235 drives the material on the first suction head 225 to rotate. At this time, the material will pass through the code scanning area driven by the X-axis moving mechanism 201, the Y-axis moving mechanism 205 and the Z-axis moving mechanism 212. When the two-dimensional code on the material appears in the code scanning area, the code scanning can be completed, avoiding the failure to scan the code due to the misalignment of the two-dimensional code when the material passes through the code scanning area.

[0031] Furthermore, a double-layer feeding platform 3 is arranged between the first gantry 206 and the second gantry 209, and the double-layer feeding platform 3 is used for alternately loading and unloading products. The double-layer feeding platform 3 includes a first base plate 301, a second base plate 302, a first rodless cylinder 303 and a second rodless cylinder 304, wherein the first base plate 301 and the second base plate 302 are arranged parallel to each other, the first rodless cylinder 303 and the second rodless cylinder 304 are arranged parallel to each other, one end of the first rodless cylinder 303 is connected to the first base plate 301, and the other end of the first rodless cylinder 303 is connected to the second base plate 302, the first rodless cylinder 303 is perpendicular to the first base plate 301 and the second base plate 302, one end of the second rodless cylinder 304 is connected to the first base plate 301, and the other end of the second rodless cylinder 304 is connected to the second base plate 302, and the second rodless cylinder 304 is perpendicular to the first base plate 301 and the second base plate 302. The double-layer feeding platform 3 also includes a first feeding plate 308, a second feeding plate 309 and a side plate 305. The horizontal height of the first feeding plate 308 is lower than that of the second feeding plate 309. The first feeding plate 308 is connected to the first rodless cylinder 303, and the second feeding plate 309 is connected to the second cylinder assembly and the side plate 305. A side plate slide rail 306 is provided on the side plate 305, and a side plate slider 307 is also slidably connected to the side plate slide rail 306. One end of the second feeding plate 309 is connected to the second driving assembly, and the other end is connected to the side plate slider 307. Since the double-layer feeding platform 3 is provided with the first feeding plate 308 and the second feeding plate 309, the first feeding plate 308 and the second feeding plate 309 can be used alternately, which reduces downtime and improves work efficiency. The first material conveying plate 308 and the second material conveying plate 309 are also provided with a material plate 310, and the material plate 310 is detachably connected to the first material conveying plate 308 and the second material conveying plate 309. Specifically, the first material conveying plate 308 and the second material conveying plate 309 are provided with mounting columns 311, and the material plate 310 is detachably connected to the first material conveying plate 308 and the second material conveying plate 309 through the mounting columns 311.

[0032] In the description of the present invention, it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the above detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of the utility model.

[0034] In the description of the present utility model, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An alternating loading and unloading device with a barcode scanning gun, comprising a workbench (1), characterized in that: A first barcode scanning gun (101), a material picking and placing arm (2) and a double-layer material feeding table (3) are provided on the workbench (1); the double-layer material feeding table (3) cooperates with the material picking and placing arm (2) to alternately load and unload products; the material picking and placing arm (2) comprises an X-axis moving mechanism (201), a Y-axis moving mechanism (205), a Z-axis moving mechanism (212) and a material picking and placing assembly (217); the X-axis moving mechanism (201) is slidably connected to the Y-axis moving mechanism (205); the Z-axis moving mechanism (212) is slidably connected to the X-axis moving mechanism (201); and the Z-axis moving mechanism (212) is slidably connected to the X-axis moving mechanism (205). The mechanism (201) is slidably connected, the material taking and placing component (217) is slidably connected to the Z-axis moving mechanism (212), the X-axis moving mechanism (201) is provided with a second code scanning gun (216), the first code scanning gun (101) and the second code scanning gun (216) form a code scanning area, the material taking and placing component (217) is provided with a first suction head (225) and a second suction head (232), and the first suction head (225) is also provided with a rotating mechanism (233), and the rotating mechanism (233) is used to drive the first suction head (225) to rotate.

2. The alternating loading and unloading device with a barcode scanning gun according to claim 1, characterized in that: The Y-axis moving mechanism (205) comprises a first gantry (206) and a second gantry (209), the first gantry (206) and the second gantry (209) being arranged parallel to each other, the first gantry (206) being provided with a first Y-axis driving slide rail (207), the first Y-axis driving slide rail (207) being slidably connected to a first Y-axis slider (208), the second gantry (209) being provided with a second Y-axis slide rail (210), the second Y-axis slide rail (211) being provided with a first Y-axis slider (212) and the second Y-axis slider (213) being provided with a second Y-axis slider (214). The X-axis moving mechanism (201) comprises a crossbeam (202), an X-axis driving slide rail (203) and an X-axis slide rail (204); the X-axis driving slide rail (203) is fixedly connected to the crossbeam (202); the X-axis slide rail (204) is slidably connected to the X-axis driving slide rail (203); one end of the crossbeam (202) is connected to the first Y-axis slide rail (208); and the other end is connected to the second Y-axis slide rail (211).

3. The alternating loading and unloading device with a barcode scanning gun according to claim 2 is characterized in that: The Z-axis moving mechanism (212) comprises a connecting plate (213), a Z-axis driving slide rail (214) and a Z-axis slider (215), wherein the Z-axis driving slide rail (214) is arranged on the connecting plate (213), the Z-axis slider (215) is slidably connected to the Z-axis driving slide rail (214), the second barcode scanning gun (216) is arranged on a side wall of the connecting plate (213), and the side opposite to the connection of the connecting plate (213) and the Z-axis driving slide rail (214) is fixedly connected to the X-axis slider (204).

4. The alternating loading and unloading device with a barcode scanning gun according to claim 3 is characterized in that: The material taking and placing assembly (217) includes an extension plate (218), and the extension plate (218) is fixedly connected to the Z-axis slider (215). The material taking and placing assembly (217) also includes a first mounting bracket (219) and a second mounting bracket (226), and the first mounting bracket (219) and the second mounting bracket (226) are fixedly connected to the extension plate (218). The first mounting bracket (219) includes a first upper mounting plate (220) and a first lower mounting plate (223), and the first upper mounting plate (220) is slidably connected to the first lower mounting plate (223). The first suction head (225) is arranged on the first lower mounting plate (223), and the second mounting bracket (226) includes a second upper mounting plate (227) and a second lower mounting plate (230), and the second upper mounting plate (227) is slidably connected to the second lower mounting plate (230), and the second suction head (232) is arranged on the second lower mounting plate (230).

5. The alternating loading and unloading device with a barcode scanning gun according to claim 4 is characterized in that: A first driving motor (221) is provided on the top of the first upper mounting plate (220), the first driving motor (221) is provided with a first extension rod (222), a first buffer block (224) is provided on the top of the first lower mounting plate (223), the first extension rod (222) is connected to the first buffer block (224), a second driving motor (228) is provided on the top of the second upper mounting plate (227), the second driving motor (228) is provided with a second extension rod (229), a second buffer block (231) is provided on the top of the second lower mounting plate (230), the second extension rod (229) is connected to the second buffer block (231).

6. The alternating loading and unloading device with a barcode scanning gun according to claim 4, characterized in that: The rotating mechanism (233) comprises a housing (234) and a rotating shaft (235). The rotating shaft (235) is arranged in the housing (234). One end of the rotating shaft (235) is connected to the first suction head (225). The rotating shaft (235) drives the first suction head (225) to rotate.

7. The alternating loading and unloading device with a barcode scanning gun according to claim 1, characterized in that: The double-layer feeding platform (3) comprises a first bottom plate (301), a second bottom plate (302), a first rodless cylinder (303) and a second rodless cylinder (304); the first bottom plate (301) and the second bottom plate (302) are arranged parallel to each other; the first rodless cylinder (303) and the second rodless cylinder (304) are arranged parallel to each other; the first rodless cylinder (303) connects the first bottom plate (301) and the second bottom plate (302) and is perpendicular to the first bottom plate (301) and the second bottom plate (302); the second rodless cylinder (304) connects the first bottom plate (301) and the second bottom plate (302) and is perpendicular to the first bottom plate (301) and the second bottom plate (302).

8. The alternating loading and unloading device with a barcode scanning gun according to claim 7, characterized in that: The double-layer feeding platform (3) also includes a first feeding plate (308), a second feeding plate (309) and a side plate (305); a side plate slide rail (306) is provided on the top of the side plate (305); a side plate slider (307) is slidably connected to the side plate slide rail (306); the first feeding plate (308) is connected to the first rodless cylinder (303); one end of the second feeding plate (309) is connected to the side plate slider (307) and the other end is connected to the second rodless cylinder (304); the horizontal height of the first feeding plate (308) is lower than the horizontal height of the second feeding plate (309).

9. The alternating loading and unloading device with a barcode scanning gun according to claim 8, characterized in that: The first material conveying plate (308) and the second material conveying plate (309) are also provided with a material plate (310), and the first material conveying plate (308) and the second material conveying plate (309) are provided with mounting columns (311), and the material plate (310) is connected to the first material conveying plate (308) and the second material conveying plate (309) through the mounting columns (311).

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