Food packaging coding machine

Abstract

The invention discloses a food packaging coding machine which comprises a base, a date laser coding assembly can press and suck the upper end of a packaging bag conveyed through a first conveying mechanism, and the date laser coding assembly moves along with the first conveying mechanism. After the sucked packaging bag leaves the first conveying mechanism, the packaging bag moves downwards due to gravity and abuts against the second conveying mechanism, the date laser coding assembly conducts laser coding on the flattened upper end, and the packaging bag subjected to laser coding leaves the date laser coding assembly and is conveyed by the second conveying mechanism. The defect that in the prior art, after a previous soybean protein product packaging bag is coded, a next soybean protein product packaging bag can work, so that the efficiency is low is overcome; the date code printing efficiency of the soybean protein product packaging bag is greatly improved through code printing work in an assembly line mode, meanwhile, it can be guaranteed that the code printing position is fixed, and the code printing quality of the soybean protein product packaging bag is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of food packaging coding, in particular to a food packaging coding machine. Background Art

[0002] Laser coding uses a high-density, high-energy laser beam to cause physical or chemical changes on the surface of the product, leaving an indelible mark. This mark is not easily wiped or worn, ensuring the long-term readability of the production date; laser marking machines can achieve very fine markings, and can clearly print the production date even on small-sized products, ensuring the accuracy and readability of the information.

[0003] Soy protein products refer to a series of products with different protein contents obtained by purifying and reprocessing the remaining soybean meal after the oil is extracted from soybeans by solvents; soybean protein products include: instant soybean powder, soybean milk powder, soybean milk, tofu crystals, etc. These products are usually used to make beverages or as nutritional supplements; additive series: including isolated protein, concentrated protein, textured protein, full-fat soybean powder, etc. These products are mainly used in food processing as additives.

[0004] Packaged soy protein products need to be date-coded, i.e. the production date, and laser coding machines are commonly used; the main purpose of date laser coding is to ensure the durability, accuracy and non-tamperability of the production date, while improving production efficiency and product quality, and achieving product anti-counterfeiting and traceability.

[0005] However, laser coding machines are different from inkjet coding. When the date is encoded on the packaging bag by laser, the position to be encoded must be identified first, and then the coding can be performed. In order to ensure the consistency of the coding, the packaging bag needs to be placed in a fixed position. The current coding machine needs to complete the coding of the previous packaging bag before it can code the date of the next packaging bag, which greatly reduces the efficiency of date coding on the packaging bag. Therefore, the present application proposes a high-efficiency food packaging coding machine. Summary of the invention

[0006] The purpose of the present invention is to solve the above technical problems and to propose a food packaging coding machine.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A food packaging coding machine comprises a base, on which two supporting columns are mounted, and a mounting plate is mounted on the upper ends of the two supporting columns:

[0009] A first conveying mechanism and a second conveying mechanism capable of synchronous movement, wherein the height of the first conveying mechanism is greater than that of the second conveying mechanism, and there is a height difference between the first conveying mechanism and the second conveying mechanism;

[0010] A plurality of date laser coding components distributed in an assembly line can continuously perform laser coding on a plurality of packaging bags; the date laser coding component can press and suck the upper end of the packaging bag conveyed by the first conveying mechanism, and the date laser coding component moves with the first conveying mechanism, and after the sucked packaging bag leaves the first conveying mechanism, the packaging bag moves downward due to gravity and abuts against the second conveying mechanism, and the upper end is adsorbed and flattened, and the date laser coding component performs laser coding on the flattened upper end, and the packaging bag after laser coding leaves the date laser coding component and is conveyed by the second conveying mechanism.

[0011] Preferably, the date laser coding assembly includes a mounting column, a movable tube slidably connected to the movable tube and capable of being reset is penetrated on the mounting column, a first spring is fixed to the upper end of the movable tube, a connecting block is fixed to the upper end of the first spring, a rubber plug located in the first spring and capable of sealing the upper end of the movable tube by moving downward is fixed to the bottom of the connecting block, a hollow plate is fixed to the bottom of the movable tube, four piston cylinders connected to the movable tube and distributed in a rectangular shape are fixed to the bottom of the hollow plate, a piston ring is slidably connected in the piston cylinder, a second spring is fixed to the piston ring and the piston cylinder, a short tube fixedly connected to the piston ring is penetrated on the piston ring, a rubber suction cup connected to the piston ring is fixed to the bottom of the short tube, a laser coding machine is installed at the bottom of the hollow plate, and an isosceles trapezoidal plate used in conjunction with the connecting block is fixed to the bottom of the mounting plate.

[0012] Preferably, an air outlet pipe is installed at the upper end of the hollow plate, and a one-way valve is installed on the air outlet pipe, and the one-way valve allows the fluid to flow through the hollow plate into the air outlet pipe.

[0013] Preferably, it also includes a power supply mechanism capable of supplying power to the laser coder, a conductive slide rail is installed at the bottom of the mounting plate, a brush connected to the laser coder is insulated and installed on the mounting column, and the brush is arranged in cooperation with the conductive slide rail.

[0014] Preferably, it also includes a driving mechanism, which includes two rotating rods rotatably installed at the bottom of the mounting plate, transmission wheels are fixed on the two rotating rods, and transmission belts are sleeved on the two transmission wheels. A first motor is installed on the mounting plate, and the output end of the first motor is fixedly connected to one of the rotating rods.

[0015] Preferably, the first conveying mechanism includes a first bracket fixed on a base, two first transmission rollers are rotatably connected to the first bracket, a first conveyor belt is wound around the two first transmission rollers, a second motor is installed on the first bracket, and an output end of the second motor is coaxially fixedly connected to one of the first transmission rollers.

[0016] Preferably, the second conveying mechanism comprises a second bracket fixed on the base, two second transmission rollers are mounted on the second bracket, a second conveyor belt is sleeved on the two second transmission rollers, and the upper end of the second conveyor belt is lower than the upper end of the first conveyor belt.

[0017] Preferably, it further comprises a transmission mechanism, wherein the transmission mechanism comprises a sprocket coaxially connected to the first transmission roller and the second transmission roller, and the two sprockets are connected by a chain.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention adopts a plurality of date laser coding components distributed in an assembly line mode, which can be used in conjunction with a first conveying mechanism and a second conveying mechanism to efficiently code the date on the packaging bags of soybean protein products, and can be suitable for large-scale processing and production in factories.

[0020] 2. Drive the connecting block and the rubber plug downward under the limit of the isosceles trapezoidal plate. At this time, the first spring is compressed, the third spring does not move, and the rubber plug moves downward and abuts against the upper end of the moving tube, thereby sealing the upper end of the moving tube and preparing for the subsequent generation of negative pressure at the rubber suction cup.

[0021] 3. The four rubber suction cups are against the upper end of the soy protein product packaging bag. Since the area for date coding is relatively small, the rectangular distribution area of ​​the four rubber suction cups is relatively small. Therefore, when the four rubber suction cups are against the upper end of the soy protein product packaging bag, the position where laser coding is required can be flattened to prepare for date coding.

[0022] 4. When the soy protein product packaging bag is about to leave the first conveyor belt, the soy protein product packaging bag moves downward due to gravity. Since the air in the hollow plate is discharged, negative pressure is generated at the rubber suction cup. The four rubber suction cups can adsorb the soy protein product packaging bag. Finally, the bottom of the soy protein product packaging bag is against the second conveyor belt and is transported. At this time, the upper end of the soy protein product packaging bag is adsorbed by the rubber suction cup and is lifted up, and the position where the date coding is required is in a horizontal state. In this way, the high temperature generated during coding will not affect the internal soy protein products.

[0023] 5. The connecting block is separated from the isosceles trapezoidal plate, and the brush is separated from the conductive slide rail, so there is no friction between the two. Since the isosceles trapezoidal plate and the conductive slide rail are only set on the front side, the two cooperate only during laser coding, so the wear between them can be reduced.

[0024] 6. Under the action of the third spring, the movable tube, the connecting block, etc. are reset. Under the action of the first spring, the connecting block and the rubber plug are moved upward and reset. The air enters the hollow plate through the movable tube. At this time, the rubber suction cup is no longer in a negative pressure state, so the soy protein product packaging bag is no longer adsorbed. The two are separated to realize the discharge of the soy protein product packaging bag.

[0025] In summary, the present invention avoids the disadvantage of low efficiency in the prior art that the coding of the previous soybean protein product packaging bag must be completed before the next soybean protein product packaging bag can be processed; the coding work using the assembly line method greatly improves the efficiency of date coding on the soybean protein product packaging bag, and at the same time can ensure that the coding position is fixed, thereby ensuring the quality of coding on the soybean protein product packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a food packaging coding machine proposed by the present invention;

[0027] Figure 2 This is a rear view of a food packaging coding machine proposed by the present invention;

[0028] Figure 3 A bottom view of a food packaging coding machine proposed by the present invention;

[0029] Figure 4 This is a structural schematic diagram of a date laser coding component in a food packaging coding machine proposed by the present invention;

[0030] Figure 5 A bottom view of a date laser coding component in a food packaging coding machine proposed by the present invention;

[0031] Figure 6 The present invention provides a schematic structural diagram of a food packaging coding machine with a piston cylinder disassembled.

[0032] In the figure: 1 base, 2 support column, 3 mounting plate, 4 first motor, 5 first bracket, 6 first transmission roller, 7 first conveyor belt, 8 second bracket, 9 second transmission roller, 10 second conveyor belt, 11 sprocket, 12 chain, 13 transmission belt, 14 transmission wheel, 15 mounting column, 16 second spring, 17 second motor, 18 rotating rod, 19 isosceles trapezoidal plate, 20 conductive slide rail, 21 hollow plate, 22 third spring, 23 exhaust pipe, 24 one-way valve, 25 moving pipe, 26 connecting block, 27 first spring, 28 rubber plug, 29 brush, 30 piston cylinder, 31 short tube, 32 rubber suction cup, 33 laser coding machine, 34 piston ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Reference Figure 1-Figure 6 A food packaging coding machine includes a base 1, two support columns 2 are installed on the base 1, and a mounting plate 3 is installed on the upper ends of the two support columns 2:

[0035] The first conveying mechanism and the second conveying mechanism can move synchronously, the height of the first conveying mechanism is greater than the height of the second conveying mechanism, and there is a height difference between the two; the above is explained in detail:

[0036] The first conveying mechanism includes a first bracket 5 fixed on the base 1, and two first transmission rollers 6 are rotatably connected to the first bracket 5. A first conveyor belt 7 is wound around the two transmission rollers 6. A second motor 17 is installed on the first bracket 5, and the output end of the second motor 17 is coaxially fixedly connected to one of the first transmission rollers 6.

[0037] The second conveying mechanism includes a second bracket 8 fixed on the base 1, two second transmission rollers 9 are installed on the second bracket 8, and a second conveyor belt 10 is sleeved on the two second transmission rollers 9. The upper end of the second conveyor belt 10 is lower than the upper end of the first conveyor belt 7. It also includes a transmission mechanism, and the transmission mechanism includes a sprocket 11 coaxially connected to the first transmission roller 6 and the second transmission roller 9. The two sprockets 11 are connected by a chain 12.

[0038] Multiple date laser coding components distributed in an assembly line can continuously perform laser coding on multiple packaging bags; the date laser coding component can press and suck the upper end of the packaging bag conveyed by the first conveying mechanism, and the date laser coding component moves with the first conveying mechanism. After the sucked packaging bag leaves the first conveying mechanism, the packaging bag moves downward due to gravity and contacts the second conveying mechanism, and the upper end is adsorbed and flattened. The date laser coding component laser codes the flattened upper end, and the laser-coded packaging bag leaves the date laser coding component and is conveyed by the second conveying mechanism.

[0039] Among them, the date laser coding component is further explained: the date laser coding component includes a mounting column 15, and in order to be able to drive the mounting column 15 to move, it also includes a driving mechanism, and the driving mechanism includes two rotating rods 18 rotatably installed at the bottom of the mounting plate 3, and the two rotating rods 18 are fixed with transmission wheels 14, and the two transmission wheels 14 are sleeved with transmission belts 13. A first motor 4 is installed on the mounting plate 3, and the output end of the first motor 4 is fixedly connected to one of the rotating rods 18. The first motor 4 drives the rotating rod 18 to rotate when it works, thereby realizing the rotation of the transmission wheel 14, wherein the transmission wheel 14 can be two transmission sprockets installed on the rotating rod 18 and distributed up and down, and the transmission belt 13 is two transmission chains and cooperates with the transmission sprocket; the mounting column 15 is installed on the transmission sprocket, so that the mounting column 15 can be stably supported.

[0040] A moving tube 25 which is slidably connected to the mounting column 15 and can be reset is provided through the mounting column 15. A third spring 22 is fixed to the upper end of the hollow plate 21. The upper end of the third spring 22 is fixedly connected to the bottom of the mounting column 15. The third spring 22 can be used to reset the moving tube 25. A first spring 27 is fixed to the upper end of the moving tube 25. A connecting block 26 is fixed to the upper end of the first spring 27. A rubber plug 28 which is located in the first spring 27 and can seal the upper end of the moving tube 25 when it moves downward is fixed to the bottom of the connecting block 26. An isosceles trapezoidal plate 19 which cooperates with the connecting block 26 is fixed to the bottom of the mounting plate 3. When the connecting block 26 abuts against the isosceles trapezoidal plate 19, the connecting block 26 can move downward under the limit of the isosceles trapezoidal plate 19. The downward movement of the connecting block 26 drives the rubber plug 28 to move downward. The upper end of the moving tube 25 can be sealed by the rubber plug 28.

[0041] A hollow plate 21 is fixed to the bottom of the moving tube 25 , an air outlet pipe 23 is installed at the upper end of the hollow plate 21 , and a one-way valve 24 is installed on the air outlet pipe 23 . The one-way valve 24 allows the fluid to flow through the hollow plate 21 into the air outlet pipe 23 .

[0042] Four piston cylinders 30 connected to the hollow plate 21 and distributed in a rectangular shape are fixed to the bottom of the hollow plate 21. A piston ring 34 is slidably connected inside the piston cylinder 30. A second spring 16 is fixed to the piston ring 34 and the piston cylinder 30. A short tube 31 fixedly connected to the piston ring 34 passes through the piston ring 34. A rubber suction cup 32 connected to the short tube 31 is fixed to the bottom of the short tube 31. The rubber suction cup 32 can absorb the soy protein product packaging bag packed with plastic film.

[0043] A laser coder 33 is installed at the bottom of the hollow plate 21, which also includes a power supply mechanism capable of supplying power to the laser coder 33. A conductive slide rail 20 is installed at the bottom of the mounting plate 3. A brush 29 connected to the laser coder 33 is insulated and installed on the mounting column 25. The brush 29 is arranged in conjunction with the conductive slide rail 20 to supply power to the laser coder 33.

[0044] Working process of the present invention:

[0045] Through the cooperation of the first motor 4 and the second motor 17, the transmission speeds of the first conveyor belt 7 and the transmission belt 13 are coordinated, so that the date laser coding assembly can move synchronously with the soy protein product packaging bag;

[0046] The packaged soy protein product (the soy protein product can be concentrated protein, tissue protein, full-fat soy flour, etc.) packaging bags are transported on the first conveyor belt 7 at equal intervals, the first motor 4 drives the rotating rod 18 to rotate, the rotating rod 18 drives the transmission wheel 14 to rotate, so as to realize the movement of the transmission belt 13 and the date laser coding component, start the second motor 17, the second motor 17 drives the first transmission roller 6 to rotate, so as to realize the movement of the first conveyor belt 7, so as to transport the soy protein product packaging bags, at this time, the soy protein product packaging bags and the date laser coding component move synchronously;

[0047] As the date laser coding assembly moves, the connecting block 26 abuts against the isosceles trapezoidal plate 19 (the brush 29 abuts against the conductive slide rail 20), and the connecting block 26 and the rubber plug 28 are driven downward under the limit of the isosceles trapezoidal plate 19. At this time, the first spring 27 is compressed, the third spring 22 does not move, and the rubber plug 28 moves downward to abut against the upper end of the moving tube 25, thereby sealing the upper end of the moving tube 25.

[0048] As the connecting block 26 moves on the isosceles trapezoidal plate 19 and moves to the bottom plane end of the isosceles trapezoidal plate 19, the connecting block 26 moves downward and drives the moving tube 25 to move downward. The moving tube 25 moves downward and drives the hollow plate 21 and the four rubber suction cups 32 to move downward. Finally, the four rubber suction cups 32 abut against the upper end of the soy protein product packaging bag. Since the area for date coding is relatively small, the rectangular distribution area of ​​the four rubber suction cups 32 is relatively small. Therefore, when the four rubber suction cups 32 abut against the upper end of the soy protein product packaging bag, the position where laser coding is required can be flattened.

[0049] After the rubber suction cup 32 abuts against the upper end of the soy protein product packaging bag, the hollow plate 21 continues to move downward, thereby driving the four piston cylinders 30 to move downward. Since the rubber suction cup 32 cannot move downward, the short tube 31 and the piston ring 34 cannot move downward. At this time, the piston ring 34 and the piston cylinder 30 move relative to each other, so that the air in the piston cylinder 30 can be squeezed and transported into the hollow plate 21. The increase in air in the hollow plate 21 causes an increase in pressure, so that the air is discharged through the air outlet pipe 23.

[0050] As the date laser coding assembly moves with the transmission belt 13, when the soy protein product packaging bag is about to leave the first conveyor belt 7, the soy protein product packaging bag moves downward due to gravity, and since the air in the hollow plate 21 is discharged, negative pressure is generated at the rubber suction cup 32, and the soy protein product packaging bag can be adsorbed by four rubber suction cups. Finally, the bottom of the soy protein product packaging bag is against the second conveyor belt 10 and is transported. At this time, the upper end of the soy protein product packaging bag is adsorbed by the rubber suction cup 32 and is suspended (the height difference between the first conveyor belt 7 and the second conveyor belt 10) and the position where the date coding is required is in a horizontal state, so that the high temperature generated during coding will not affect the internal soy protein products;

[0051] It should be noted that when the rubber suction cup 32 abuts against the soy protein product packaging bag, the laser coder 33 is in a ready state (position recognition state), and a controller for controlling the laser coder 33 is installed on the hollow plate 21;

[0052] When the bottom of the soy protein product packaging bag abuts against the second conveyor belt 10 and is being conveyed, the laser coding machine 33 works to code the soy protein product packaging bag;

[0053] As the date laser coding assembly moves, the connecting block 26 is separated from the isosceles trapezoidal plate 19, and the brush 29 is separated from the conductive slide rail 20, so there is no friction between the two. Since the isosceles trapezoidal plate 19 and the conductive slide rail 20 are only arranged on the front side, and the two cooperate only during laser coding, the wear between them can be reduced; under the action of the third spring 22, the movable tube 25, the connecting block 26 and the like are reset, and under the action of the first spring 27, the connecting block 26 and the rubber plug 28 are moved upward and reset, and the air enters the hollow plate 21 through the movable tube 25. At this time, the rubber suction cup 32 is no longer in a negative pressure state, so the soybean protein product packaging bag is no longer adsorbed, and the two are separated. The soybean protein product packaging bag with completed date coding is conveyed by the second conveyor belt 10, and the date laser coding assembly moves with the transmission belt 13;

[0054] Similarly, the date laser coding component on the rear side can flatten, adsorb and code the soy protein product packaging bags on the rear side one by one, thus avoiding the disadvantage of low efficiency in the prior art that the coding of the previous soy protein product packaging bag must be completed before the next soy protein product packaging bag can be processed; in this way, the efficiency of date coding on the soy protein product packaging bags is greatly improved by using the assembly line method, while ensuring that the coding position is fixed and the coding quality of the soy protein product packaging bags is guaranteed.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A food packaging coding machine, comprising a base (1), on which two support columns (2) are mounted, and a mounting plate (3) is mounted on the upper ends of the two support columns (2), characterized in that: A first conveying mechanism and a second conveying mechanism capable of synchronous movement, wherein the height of the first conveying mechanism is greater than that of the second conveying mechanism, and there is a height difference between the first conveying mechanism and the second conveying mechanism; A plurality of date laser coding components distributed in an assembly line can continuously perform laser coding on a plurality of packaging bags; the date laser coding component can press and suck the upper end of the packaging bag conveyed by the first conveying mechanism, and the date laser coding component moves with the first conveying mechanism, and after the sucked packaging bag leaves the first conveying mechanism, the packaging bag moves downward due to gravity and abuts against the second conveying mechanism, and the upper end is adsorbed and flattened, and the date laser coding component performs laser coding on the flattened upper end, and the packaging bag after laser coding leaves the date laser coding component and is conveyed by the second conveying mechanism.

2. A food packaging coding machine according to claim 1, characterized in that: The date laser coding assembly comprises a mounting column (15), the mounting column (15) is penetrated by a movable tube (25) which is slidably connected to the mounting column (15) and can be reset, a first spring (27) is fixed to the upper end of the movable tube (25), a connecting block (26) is fixed to the upper end of the first spring (27), a rubber plug (28) which is located in the first spring (27) and can be moved downward to seal the upper end of the movable tube (25) is fixed to the bottom of the connecting block (26), a hollow plate (21) is fixed to the bottom of the movable tube (25), and the bottom of the hollow plate (21) is fixed There are four piston cylinders (30) connected to the hollow plate (21) and distributed in a rectangular shape. A piston ring (34) is slidably connected inside the piston cylinder (30). A second spring (16) is fixed to the piston ring (34) and the piston cylinder (30). A short tube (31) fixedly connected to the piston ring (34) is passed through the piston ring (34). A rubber suction cup (32) connected to the short tube (31) is fixed at the bottom. A laser coder (33) is installed at the bottom of the hollow plate (21). An isosceles trapezoidal plate (19) used in conjunction with a connecting block (26) is fixed at the bottom of the mounting plate (3).

3. A food packaging coding machine according to claim 2, characterized in that: An air outlet pipe (23) is installed at the upper end of the hollow plate (21), and a one-way valve (24) is installed on the air outlet pipe (23). The one-way valve (24) allows fluid to flow through the hollow plate (21) into the air outlet pipe (23).

4. A food packaging coding machine according to claim 2, characterized in that: It also includes a power supply mechanism capable of supplying power to the laser coder (33); a conductive slide rail (20) is installed at the bottom of the mounting plate (3); a brush (29) connected to the laser coder (33) is insulated and installed on the mounting column (25); and the brush (29) is arranged in cooperation with the conductive slide rail (20).

5. A food packaging coding machine according to claim 2, characterized in that: The invention also comprises a driving mechanism, wherein the driving mechanism comprises two rotating rods (18) rotatably mounted on the bottom of the mounting plate (3), transmission wheels (14) being fixed on the two rotating rods (18), transmission belts (13) being sleeved on the two transmission wheels (14), a first motor (4) being mounted on the mounting plate (3), and an output end of the first motor (4) being fixedly connected to one of the rotating rods (18).

6. A food packaging coding machine according to claim 1, characterized in that: The first conveying mechanism comprises a first bracket (5) fixed on a base (1); two first transmission rollers (6) are rotatably connected to the first bracket (5); a first conveying belt (7) is wound around the two first transmission rollers (6); a second motor (17) is installed on the first bracket (5); an output end of the second motor (17) is coaxially fixedly connected to one of the first transmission rollers (6).

7. A food packaging coding machine according to claim 6, characterized in that: The second conveying mechanism comprises a second bracket (8) fixed on the base (1), two second transmission rollers (9) are mounted on the second bracket (8), a second conveying belt (10) is sleeved on the two second transmission rollers (9), and the upper end of the second conveying belt (10) is lower than the upper end of the first conveying belt (7).

8. A food packaging coding machine according to claim 7, characterized in that: It also includes a transmission mechanism, which includes a sprocket (11) coaxially connected to the first transmission roller (6) and the second transmission roller (9), and the two sprockets (11) are connected by a chain (12).

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