Automatic positioning and die-cutting production line for packaging box sheets

Abstract

The present invention discloses an automatic positioning and die-cutting production line for packaging box material plates, including a front-end conveying device, an automatic positioning device, a loading module, a die device, a material unloading and waste discharge device, and a rear-end conveying device, wherein the automatic positioning device is arranged on the front-end conveying device and is used to position the material plate conveyed by the front-end conveying device, the loading module is used to convey the positioned material plate to the die device, the die device is used to perform die punching on the material plate, and the material unloading and waste discharge device is used to remove waste from the material plate that has completed die punching and unload it to the rear-end conveying device. In the present invention, the front-end conveying, automatic positioning, loading, die punching, waste discharge and unloading, and rear-end conveying are combined, the material plate is positioned by the automatic positioning device, and the material unloading and waste discharge device is used to remove waste and unload the material plate that has completed die punching, thereby realizing the fully automatic assembly line operation of loading and punching dies of packaging box material plates, improving the accuracy of the die, and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to an automatic positioning and die-cutting production line for packaging box material plates. Background Art

[0002] In products such as cosmetic packaging boxes, the material panels that make up the packaging boxes are composed of cardboard and facial tissue. The thickness of the cardboard is more than 1mm, and the thickness of the facial tissue is about 0.2mm. In order to enhance the firmness and beauty of the adhesion when assembling the packaging box, the area of ​​the facial tissue is generally larger than that of the cardboard, that is, the four sides of the facial tissue will protrude from the four edges of the cardboard.

[0003] In the prior art packaging box sheet production process, the sheet needs to be manually placed on the die-cutting machine, and then the die-cutting machine is used to automatically cut the sheet, and then the sheet is manually removed and the sheet is manually discharged. This has the following shortcomings:

[0004] (1) There is a large amount of manual work, low safety performance and low production efficiency;

[0005] (2) Long-term manual operation may easily lead to inaccurate positioning due to manual errors or improper operations, resulting in a high scrap rate, which is not conducive to enterprises reducing production costs.

[0006] Therefore, it is necessary to provide a production line that can realize fully automatic assembly line operation of material plates. Summary of the invention

[0007] In order to overcome at least one of the defects of the prior art described above, the present invention provides an automatic positioning and die-cutting production line for packaging box material plates.

[0008] The technical solution adopted by the present invention to solve the problem is:

[0009] An automatic positioning and die-cutting production line for packaging box material plates, comprising a front-end conveying device for loading material plates, an automatic positioning device, a loading module, a die device, a material unloading and waste discharge device, and a rear-end conveying device, wherein the automatic positioning device is arranged on the front-end conveying device and is used to position the material plates conveyed by the front-end conveying device, the loading module is used to convey the positioned material plates to the die device, the die device is used to punch the material plates, and the material unloading and waste discharge device is used to remove waste from the material plates that have been punched and unload them to the rear-end conveying device.

[0010] The automatic positioning and die-cutting production line for packaging box material plates provided by the present invention combines front-end transportation, automatic positioning, loading, punching, waste discharge and unloading, and back-end transportation. The material plates are positioned by an automatic positioning device, and the unloading and waste discharge device is used to remove waste and unload the material plates that have completed the punching, thereby realizing fully automatic assembly line operation of loading and punching dies for packaging box material plates, improving the accuracy of the punching dies, and improving production efficiency.

[0011] Furthermore, the automatic positioning device comprises a pre-clamping module for pre-positioning the material sheet and a positioning module for finally positioning the material sheet.

[0012] Furthermore, the front-end conveying device includes a front-end conveyor belt and a rear-end conveyor belt, the pre-clamping module is arranged between the front-end conveyor belt and the rear-end conveyor belt, the positioning module is arranged on the rear-end conveyor belt, the front-end conveyor belt is used to convey the material sheet to the pre-clamping module, and the rear-end conveyor belt is used to convey the pre-positioned material sheet to the positioning module.

[0013] Furthermore, the pre-clamping module includes a first electric eye, two relatively slidable clamping plates, and a driving device for driving the two clamping plates to slide relative to each other. The first electric eye is used to detect the material sheet, and the driving device drives the two clamping plates to slide relative to each other to clamp the material sheet to a preset position.

[0014] Furthermore, the positioning module includes a second electric eye, a front limit pre-pressure device and two side clamping devices, the second electric eye is used to detect the material board, the front limit pre-pressure device is used to resist the front side of the cardboard of the material board and pre-pressure the surface paper of the material board, and the two side clamping devices are used to clamp the left and right sides of the cardboard of the material board to position the material board.

[0015] Furthermore, the front limit pre-pressing device includes a front baffle, a first translation drive mechanism and a first vertical drive mechanism, the first translation drive mechanism drives the front baffle to move horizontally along the conveying direction of the material plate, and the first vertical drive mechanism drives the front baffle to move up and down in the vertical direction.

[0016] Furthermore, the side clamping device includes a side baffle, a second translation drive mechanism and a second vertical drive mechanism, the second translation drive mechanism drives the side baffle to move horizontally perpendicular to the conveying direction of the material plate, and the second vertical drive mechanism drives the side baffle to move up and down in the vertical direction.

[0017] Furthermore, the material unloading and waste discharge device includes a material unloading module for sucking and releasing the material plate, a waste discharge bottom mold for placing the material plate, and a waste discharge upper mold. The waste discharge upper mold is arranged on the material unloading module, and the waste discharge bottom mold is provided with perforations corresponding to the waste positions of the material plate. The waste discharge upper mold is provided with ejectors. When the material unloading module drives the waste discharge upper mold to move downward relative to the waste discharge bottom mold, the ejector ejects the waste on the material plate from the perforations downward and removes it.

[0018] Furthermore, the material unloading and waste discharge device includes a material unloading module for sucking and releasing the material plate, a waste discharge bottom mold for placing the material plate, and a blowing structure for blowing away the waste. The blowing structure is located on the side of the waste discharge bottom mold. The waste discharge bottom mold is provided with a convex mold corresponding to the waste on the material plate. When the material unloading module sucks and drives the material plate to move downward relative to the waste discharge bottom mold, the convex mold pushes the waste on the material plate upward to remove it.

[0019] Furthermore, the material unloading and waste discharge device also includes a chip removal structure for sweeping away residual waste on the waste discharge bottom mold, and the chip removal structure is arranged on the material unloading module.

[0020] In summary, the automatic positioning and die-cutting production line for packaging box material provided by the present invention has the following beneficial effects:

[0021] The front-end conveying, automatic positioning, loading, punching, waste discharge and unloading as well as the rear-end conveying are combined, the material plate is positioned by the automatic positioning device, and the material plate after the punching is removed and unloaded by the unloading and waste discharge device, so as to realize the fully automatic assembly line operation of loading and punching the packaging box material plate, improve the punching die accuracy, and improve the production efficiency. Other beneficial effects of the present invention will be shown in the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the automatic positioning device according to Embodiment 1 of the present invention;

[0024] Figure 3 for Figure 2 The structural schematic diagram of the pre-clamping positive module shown;

[0025] Figure 4 for Figure 2 The structural schematic diagram of the positioning module shown;

[0026] Figure 5 for Figure 4 The positioning schematic diagram of the positioning module shown;

[0027] Figure 6 for Figure 4 The structural schematic diagram of the front limit preloading device shown;

[0028] Figure 7 for Figure 4 The structural schematic diagram of the side clamping device shown;

[0029] Figure 8 for Figure 1 The structural schematic diagram of the material discharge and waste discharge device shown;

[0030] Fig. 9 for Figure 8 A schematic diagram of a waste discharge structure of a material discharge and waste discharge device is shown;

[0031] Fig.10 This is a schematic structural diagram of a material discharge and waste discharge device according to Embodiment 2 of the present invention;

[0032] Fig.11 for Fig.10 A schematic diagram of the waste discharge structure of the unloading and waste discharge device is shown.

[0033] The meanings of the reference numerals are as follows:

[0034] 1. Front conveying device; 11. Front conveyor belt; 12. Rear conveyor belt; 2. Automatic positioning device; 21. Pre-clamping positive module; 211. First electric eye; 212. Clamping plate; 213. Driving device; 2131. Pre-clamping base; 2132. Sliding seat; 2133. Sliding rod; 2134. Horizontal cylinder; 2135. Limiting member; 22. Positioning module; 221. Second electric eye; 222. Front limit pre-pressing device; 2221. Front baffle; 2222. First translation driving mechanism; 2223. First vertical driving mechanism; 2224. First pre-adjusting base; 2225. First pre-adjusting screw; 22 3. Side clamping device; 2231. Side baffle; 2232. Second translation drive mechanism; 2233. Second vertical drive mechanism; 2234. Second pre-adjustment base; 2235. Second pre-adjustment screw; 224. Positioning base; 3. Loading module; 4. Punching die device; 5. Unloading and waste discharge device; 51. Unloading module; 511. First pick-up and placement assembly; 512. Second pick-up and placement assembly; 513. Down-pressing cylinder; 52. Waste discharge bottom die; 521. Perforation; 522. Punch; 53. Waste discharge upper die; 531. Ejector; 54. Blowing structure; 55. Chip removal structure; 6. Rear-end conveying device; 7. Material plate. DETAILED DESCRIPTION

[0035] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] Example 1

[0039] See also Figures 1 to 9 The present invention discloses an automatic positioning and die-cutting production line for packaging box material plates, comprising a front-end conveying device 1 for feeding material plates 7, an automatic positioning device 2, a feeding module 3, a die device 4, a material discharge and waste discharge device 5, and a rear-end conveying device 6, wherein the automatic positioning device 2 is arranged on the front-end conveying device 1 and is used to position the material plates 7 conveyed by the front-end conveying device 1, the feeding module 3 is used to convey the positioned material plates 7 to the die device 4, the die device 4 is used to perform die punching on the material plates 7, and the material discharge and waste discharge device 5 is used to remove waste from the material plates 7 that have completed die punching and discharge them to the rear-end conveying device 6. In the present invention, the front-end conveying, automatic positioning, feeding, die punching, waste discharge and material discharge, and rear-end conveying are combined, the material plates 7 are positioned by the automatic positioning device 2, and the material discharge and waste discharge device 5 is used to remove waste and discharge the material plates 7 that have completed die punching, thereby realizing the fully automatic assembly line operation of the material plate feeding and die punching of packaging box materials, improving the die precision, and improving the production efficiency.

[0040] In this embodiment, the automatic positioning device 2 includes a pre-clamping module 21 for pre-positioning the sheet 7 and a positioning module 22 for finally positioning the sheet 7. In the present invention, the positioning of the sheet 7 is divided into two steps, wherein the pre-clamping module 21 is used to pre-position the sheet 7, and then the positioning module 22 is used to finally position the sheet 7, so that the subsequent positioning module 22 can complete the precise positioning of the sheet 7 with a shorter stroke, thereby reducing the difficulty of positioning and preventing the sheet 7 from deviating during the final positioning.

[0041] See also Figure 1 and Figure 2, wherein the front conveying device 1 includes a front conveyor belt 11 and a rear conveyor belt 12; the pre-clamping module 21 is arranged between the front conveyor belt 11 and the rear conveyor belt 12, the positioning module 22 is arranged on the rear conveyor belt 12, the front conveyor belt 11 is used to convey the material sheet 7 to the pre-clamping module 21, and the rear conveyor belt 12 is used to convey the pre-positioned material sheet 7 to the positioning module 22. Specifically, the front conveyor belt 11 and the rear conveyor belt 12 are arranged on the frame of the production line, and the conveying surfaces of the front conveyor belt 11 and the rear conveyor belt 12 are located on the same horizontal plane, so that the material sheet 7 can be moved from the front conveyor belt 11 to the rear conveyor belt 12.

[0042] See also Figure 2 and Figure 3 In this embodiment, the pre-clamping module 21 includes a first electric eye 211, two clamping plates 212 that are relatively slidable, and a driving device 213 that drives the two clamping plates 212 to slide relative to each other. The first electric eye 211 is used to detect the material sheet 7, and the driving device 213 drives the two clamping plates 212 to slide relative to each other to clamp the material sheet 7 to a preset position. The two clamping plates 212 are located between the front conveyor belt 11 and the rear conveyor belt 12, and the driving device 213 is installed on the frame of the production line. The installation position of the first electric eye 211 is not specifically limited, and it only needs to be able to complete the detection of whether there is a material sheet 7 located between the two clamping plates 212.

[0043] Therefore, the first electric eye 211 is used to detect the material sheet 7, so that the clamping plate 212 can clamp the material sheet 7 to the preset position more accurately, and the pre-clamping work of the material sheet 7 is precisely refined, the pre-clamping frequency is increased, and the work efficiency is improved; at the same time, it is convenient to reduce the clamping specifications of the clamping plate 212, facilitate the assembly of the clamping plate 212 on the production line, and reduce equipment costs.

[0044] Specifically, the driving device 213 includes a pre-clamping base 2131, two slides 2132 are respectively provided on both sides of the pre-clamping base 2131, a slide bar 2133 is slidably provided on the two slides 2132 on the same side, the two clamping plates 212 are respectively fixedly connected to the two slide bars 2133, and two horizontal cylinders 2134 are also provided on both sides of the pre-clamping base 2131. The two horizontal cylinders 2134 respectively drive the two slide bars 2133 to slide in opposite directions to drive the two clamping plates 212 to move relatively closer or farther away. Preferably, each of the slide bars 2133 is provided with a stopper 2135, the stopper 2135 is located between the two clamping plates 212 and can be adjusted and fixed to any position of the slide bar 2133, and the two stoppers 2135 are used to define the minimum spacing distance between the two clamping plates 212.

[0045] See also Figure 2 , Figure 4 and Figure 5 In this embodiment, the positioning module 22 includes a second electric eye 221, a front limit pre-pressing device 222 and clamping devices 223 on both sides. The second electric eye 221 is used to detect the material board 7, the front limit pre-pressing device 222 is used to resist the front side of the cardboard of the material board 7 and pre-press the surface paper of the material board 7, and the clamping devices 223 on both sides are used to clamp the left and right sides of the cardboard of the material board 7 to position the material board 7.

[0046] Therefore, the second electric eye 221 is used to detect the material sheet 7, so that the front limit pre-pressing device 222 and the side clamping device 223 can clamp and position the material sheet 7 more accurately, and at the same time, it is convenient to accurately refine the clamping and positioning work of the front limit pre-pressing device 222 and the side clamping device 223, thereby increasing the clamping and positioning frequency and improving work efficiency.

[0047] The positioning module 22 further includes a positioning base 224 disposed above the rear conveyor belt 12, and the front limit pre-pressing device 222 and the side clamping device 223 are disposed on the positioning base 224. Of course, the installation position of the second electric eye 221 is not specifically limited, and it is sufficient to complete the detection of whether a material plate 7 is located at the position of the positioning module 22.

[0048] See also Figure 6 In this embodiment, the front limit pre-pressing device 222 includes a front baffle plate 2221, a first translation driving mechanism 2222 and a first vertical driving mechanism 2223. The first translation driving mechanism 2222 drives the front baffle plate 2221 to move horizontally along the conveying direction of the material plate 7, and the first vertical driving mechanism 2223 drives the front baffle plate 2221 to move up and down in the vertical direction. Among them, the first translation drive mechanism 2222 is slidably set on the first pre-adjustment base 2224, and the first pre-adjustment screw 2225 is rotatably set on the first pre-adjustment base 2224. The first pre-adjustment screw 2225 is threadedly matched with the first translation drive mechanism 2222. When the first pre-adjustment screw 2225 is rotated, the threaded cooperation of the first pre-adjustment screw 2225 drives the first translation drive mechanism 2222 to slide on the first pre-adjustment base 2224 to pre-adjust the initial position of the first translation drive mechanism 2222; the front baffle 2221 is set at the output end of the first vertical drive mechanism 2223, and the first vertical drive mechanism 2223 is set at the output end of the first translation drive mechanism 2222. The first translation drive mechanism 2222 and the first vertical drive mechanism 2223 are both driven by cylinders.

[0049] See also Figure 7In this embodiment, the side clamping device 223 includes a side baffle 2231, a second translation driving mechanism 2232 and a second vertical driving mechanism 2233. The second translation driving mechanism 2232 drives the side baffle 2231 to move horizontally perpendicular to the conveying direction of the material plate 7, and the second vertical driving mechanism 2233 drives the side baffle 2231 to move up and down in the vertical direction. Among them, similar to the front limit preloading device 222, the second translation drive mechanism 2232 is slidably set on the second pre-adjustment base 2234, and the second pre-adjustment screw 2235 is rotatably set on the second pre-adjustment base 2234. The second pre-adjustment screw 2235 is threadedly matched with the second translation drive mechanism 2232. When the second pre-adjustment screw 2235 is rotated, the threaded cooperation of the second pre-adjustment screw 2235 drives the second translation drive mechanism 2232 to slide on the second pre-adjustment base 2234 to pre-adjust the initial position of the second translation drive mechanism 2232; the side baffle 2231 is set at the output end of the second vertical drive mechanism 2233, and the second vertical drive mechanism 2233 is set at the output end of the second translation drive mechanism 2232. The second translation drive mechanism 2232 and the second vertical drive mechanism 2233 are both driven by cylinders.

[0050] In this embodiment, the working process of the automatic positioning device 2 is as follows:

[0051] 1. When the first electric eye 211 detects that the sheet 7 enters between the two clamping plates 212, the front conveyor belt 11 stops conveying, and the driving device 213 drives the two clamping plates 212 to move relatively close to each other, so as to push the sheet 7 deviating from the preset position to the preset position, so that the subsequent positioning module 22 can complete the precise positioning of the sheet 7 with a shorter stroke;

[0052] 2. When the pre-clamping module 21 completes the pre-positioning of the material plate 7, the clamping devices 223 on both sides start the first step of work, and the second translation driving mechanism 2232 drives the side baffle 2231 to extend the first stroke, and the distance of the first stroke of the side baffle 2231 is set according to the parameters of the preset position and the parameters of the material plate 7, so as to prevent the side baffle 2231 from scraping the facial paper during the subsequent horizontal clamping movement; at the same time, the front limit pre-pressing device 222 starts the first step of work, and the first translation driving mechanism 2222 drives the front baffle 2221 to extend the first stroke, and the distance of the first stroke of the front baffle 2221 is set according to the parameters of the material plate 7 (specifically, the distance of the first stroke of the front baffle 2221 is greater than the length of the facial paper protruding from the cardboard);

[0053] 3. After the pre-clamping module 21 completes the pre-positioning of the sheet 7, the front conveyor belt 11 and the rear conveyor belt 12 are started, wherein the front conveyor belt 11 conveys the pre-positioned sheet 7 to the rear conveyor belt 12, and the rear conveyor belt 12 conveys the sheet 7 forward until the front baffle 2221 of the front limit pre-pressing device 222 abuts against the front side of the paperboard of the sheet 7 (the distance between the lower end of the front baffle 2221 and the conveying surface of the rear conveyor belt 12 is greater than the thickness of the surface paper of the sheet 7 and less than the overall thickness of the sheet 7);

[0054] 4. At this time, the second electric eye 221 detects the material sheet 7, the rear conveyor belt 12 stops conveying, and the first vertical drive mechanism 2223 drives the front baffle 2221 to press down on the surface paper of the material sheet 7 to complete the pre-pressing of the material sheet 7;

[0055] 5. The second vertical driving mechanism 2233 drives the side baffle 2231 to move downward until the distance between the bottom of the side baffle 2231 and the conveying surface of the rear conveyor belt 12 is greater than the thickness of the surface paper of the material sheet 7 and less than the overall thickness of the material sheet 7, and then the second translation driving mechanism 2232 drives the side baffle 2231 to move horizontally until the two side baffles 2231 are clamped on the left and right sides of the paperboard of the material sheet 7, thereby completing the final positioning of the material sheet 7;

[0056] 6. The front baffle 2221 and the baffles 2231 on both sides rise and retract, and the loading module 3 starts to work, sucking the material plate 7 that has completed the final positioning and loading it to the die device 4.

[0057] In this embodiment, since the feeding die set 3 and the punching die device 4 are both prior art, they are not described in detail here.

[0058] See also Figure 8 and Fig. 9 In this embodiment, the material unloading and waste discharge device 5 includes a material unloading module 51 for sucking and releasing the material plate 7 and a waste discharge bottom module 52 for placing the material plate 7.

[0059] It should be noted that, in the present invention, the main structure of the unloading module 51 is the same as the prior art as the loading module 3, the only difference is that the loading module 3 has one pick-and-place component, while the unloading module 51 has two pick-and-place components. Therefore, in this embodiment, the main structure of the unloading module 51 is no longer described in detail.

[0060] In this embodiment, the material discharge module 51 includes a first pick-and-place assembly 511 for conveying the material sheet 7 after the die is punched to the waste discharge bottom mold 52 and a second pick-and-place assembly 512 for conveying the material sheet 7 after waste discharge to the material discharge conveying device 6; when the first pick-and-place assembly 511 is taking materials, the second pick-and-place assembly 512 cooperates with the waste discharge bottom mold 53 to complete waste discharge of the material sheet 7 placed on the waste discharge bottom mold 53. Therefore, the second pick-and-place assembly 512 in the material discharge module 51 has the function of taking and placing materials and the function of realizing waste discharge of the material sheet 7 in combination with the waste discharge bottom mold 53, so as to realize the integrated operation of taking materials, discharging waste, and outputting and discharging materials for the material sheet 7, thereby improving production efficiency.

[0061] Wherein, the first pick-and-place assembly 511 and the second pick-and-place assembly 512 are synchronously translated and lifted under the action of the driving mechanism of the blanking die set 51. When the first pick-and-place assembly 511 sucks the die-cutting material plate 7 from the die device 4, the second pick-and-place assembly 512 simultaneously sucks the waste-cutting material plate 7 from the waste-cutting bottom die 52; when the first pick-and-place assembly 511 places the sucked material plate 7 on the waste-cutting bottom die 52, the second pick-and-place assembly 512 simultaneously places the sucked material plate 7 on the blanking conveying device 6. In this way, the blanking speed of the die blanking and waste-cutting device 5 is accelerated, and the production efficiency is improved.

[0062] In the present invention, the first pick-and-place assembly 511 and the second pick-and-place assembly 512 are both prior art, and the first pick-and-place assembly 511 and the second pick-and-place assembly 512 are negative pressure suction cup structures in the prior art.

[0063] In this embodiment, preferably, the second picking and placing component 512 is connected to the main structure of the material unloading module 51 through a downward pressure cylinder 513, wherein the downward pressure cylinder 513 is fixed on the main structure of the material unloading module 51, and the second picking and placing component 512 is fixedly connected to the output end of the downward pressure cylinder. When it is necessary to press down to discharge waste, the system can actively control the extension and retraction of the downward pressure cylinder to drive the second picking and placing component 512 to complete material picking and waste discharge.

[0064] In this example, the material discharge and waste discharge device 5 further includes a waste discharge upper die 53, which is arranged on the second pick-and-place assembly 512, and is combined with the second pick-and-place assembly 512 and moves with the second pick-and-place assembly 512; the waste discharge bottom die 52 is provided with a perforation 521 corresponding to the waste position of the material plate 7, and the waste discharge upper die 53 is provided with an ejector pin 531, and when the material discharge die 51 drives the waste discharge upper die 53 to move downward relative to the waste discharge bottom die 52, the ejector pin 531 ejects and removes the waste on the material plate 7 downward from the perforation 521. By using the cooperation between the ejector pin 531 and the perforation 521, while the second pick-and-place assembly 512 sucks the material plate 7 on the waste discharge bottom die 52, the waste discharge of the cross-cut material plate 7 is realized, and its structure is simple, which greatly simplifies the waste discharge structure, saves costs, and has simple actions, and can complete waste discharge during the material collection process, thereby improving production efficiency.

[0065] In order to facilitate the ejection and falling of the waste, the size of the perforation 521 is larger than the size of the waste on the material plate 7, and the cross-sectional size of the ejector pin 531 is smaller than the size of the waste on the material plate 7.

[0066] When the first pick-and-place component 511 is pressed down at the position of the die device 4 to absorb the material plate 7, the second pick-and-place component 512 drives the waste discharge upper mold 53 to be pressed down, and the ejector pin 531 ejects the waste on the material plate 7 placed on the waste discharge bottom mold 52 from the perforation 521 to remove it. When the second pick-and-place component 512 is pressed down to the limit position, the suction cup on the second pick-and-place component 512 absorbs the material plate 7 after the waste discharge is completed.

[0067] Preferably, the number of the ejector pins 531 corresponds to the number of the through holes 521 and the waste material on the sheet, and each of the ejector pins 531 corresponds to one through hole 521 and one waste material.

[0068] In this embodiment, the waste discharge bottom mold 52 is arranged on two waste discharge bases 56 through two cross bars. Of course, the waste discharge bottom mold 52 can also be directly installed on a production line or other mounting frames. There is a space between the two waste discharge bases 56 to facilitate the placement of a waste collection box to collect waste.

[0069] See also Figure 8 and Fig. 9 In this embodiment, the material unloading and waste discharge device 5 also includes a chip removal structure 55 for sweeping away residual waste on the waste discharge bottom mold 52, and the chip removal structure 55 is arranged on the material unloading mold assembly 51.

[0070] In this embodiment, preferably, the chip removal structure 55 is located between the first pick-and-place assembly 511 and the second pick-and-place assembly 512 , and the chip removal structure 55 translates synchronously with the first pick-and-place assembly 511 and / or the second pick-and-place assembly 512 .

[0071] Specifically, the chip removal structure 55 is a brush, which is disposed below the first pick-and-place assembly 511 and between the negative pressure suction cup of the first pick-and-place assembly 511 and the negative pressure suction cup of the second pick-and-place assembly 512. When the first pick-and-place assembly 511 and the second pick-and-place assembly 512 move back and forth above the waste discharge bottom mold 52, the brush can clean the remaining waste on the waste discharge bottom mold 52.

[0072] Example 2

[0073] See also Fig.10 and Fig.11 The difference between this embodiment and embodiment 1 is only the difference in the waste discharge mechanism in the material waste discharge device 5. The details are as follows:

[0074] In this embodiment, the material unloading and waste discharge device 5 includes a material unloading module 51 for sucking and placing the material plate 7, a waste discharge bottom mold 52 for placing the material plate 7, and a blowing structure 54 for blowing away the waste. The waste discharge bottom mold 52 is provided with a punch 522 corresponding to the waste on the material plate 7. When the second picking and placing component 512 sucks and drives the material plate 7 to move downward relative to the waste discharge bottom mold 52, the punch 522 pushes the waste on the material plate 7 upward and removes it. The blowing structure 54 is located on the side of the waste discharge bottom mold 52 to blow away the ejected waste. Therefore, the thrust of the second picking and placing component 512 when pressing down to pick up the material is used to push the material plate 7 downward, and cooperate with the punch 522 on the waste discharge bottom mold 52 to push the waste on the material plate 7 upward and remove it, thereby realizing the waste discharge of the material plate 7 after cross-cutting. Its structure is more concise and simple, and there is no need for a waste discharge upper mold 53, which reduces the overall weight of the second picking and placing component 512; at the same time, when it is necessary to produce material plates 7 of different specifications, it is only necessary to replace the waste discharge bottom mold 52, saving labor costs and mold opening costs.

[0075] In order to facilitate the upward ejection of the waste, the size of the punch 522 is smaller than the size of the waste on the material plate 7.

[0076] Preferably, the number of the punches 522 corresponds to the number of waste materials on the sheet, and each of the punches 522 corresponds to one waste material.

[0077] In this embodiment, the structure of the blanking module 51 is consistent with that of embodiment 1, and also includes a first pick-and-place component 511 and a second pick-and-place component 512. The second pick-and-place component 512 is also connected to the main structure of the blanking module 51 through a lower pressure cylinder 513, which will not be repeated here.

[0078] In this embodiment, when the first pick-and-place component 511 is pressed down at the position of the die device 4 to absorb the material sheet 7, the second pick-and-place component 512 pushes the material sheet down. During the pressing process, the punch 522 pushes the waste material on the material sheet 7 upward to remove it, and the blowing structure 54 starts to work to blow away the ejected waste material. When the second pick-and-place component 512 is pressed down to the limit position, the suction cup on the second pick-and-place component 512 absorbs the material sheet 7 after the waste is discharged.

[0079] To sum up, the automatic positioning and die-cutting production line for the packaging box material plate provided by the present invention combines front-end transportation, automatic positioning, loading, punching, waste discharge and unloading, and back-end transportation. The material plate 7 is positioned by the automatic positioning device 2, and the unloading and waste discharge device 5 is used to remove waste and unload the material plate 7 that has completed the punching, thereby realizing the fully automatic assembly line operation of the packaging box material plate loading and punching, improving the punching die accuracy, and improving production efficiency.

[0080] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. An automatic positioning and die-cutting production line for packaging box sheets, characterized in that: It includes a front-end conveying device for loading material sheets, an automatic positioning device, a loading module, a punching die device, a material unloading and waste discharge device, and a rear-end conveying device, wherein: The automatic positioning device is arranged on the front-end conveying device and is used to position the material sheet conveyed by the front-end conveying device, the loading module is used to convey the positioned material sheet to the punching device, the punching device is used to punch the material sheet, and the unloading and waste discharge device is used to remove waste from the material sheet that has completed the punching and unload it to the rear-end conveying device; The automatic positioning device includes a pre-clamping module for pre-positioning the material sheet and a positioning module for finally positioning the material sheet; The front-end conveying device includes a front-end conveyor belt and a rear-end conveyor belt, the pre-clamping module is arranged between the front-end conveyor belt and the rear-end conveyor belt, and the positioning module is arranged on the rear-end conveyor belt. The front-end conveyor belt is used to convey the material sheet to the pre-clamping module, and the rear-end conveyor belt is used to convey the pre-positioned material sheet to the positioning module; the pre-clamping module includes a first electric eye, two clamping plates arranged to slide relative to each other, and a driving device that drives the two clamping plates to slide relative to each other, the first electric eye is used to detect the material sheet, and the driving device drives the two clamping plates to slide relative to each other to clamp the material sheet to a preset position; the positioning module includes a second electric eye, a front limit pre-pressing device and two side clamping devices, the second electric eye is used to detect the material sheet, the front limit pre-pressing device is used to resist the front side of the paperboard of the material sheet and pre-press the surface paper of the material sheet, and the two side clamping devices are used to clamp the left and right sides of the paperboard of the material sheet to position the material sheet.

2. The automatic positioning and die-cutting production line according to claim 1, characterized in that: The front limit pre-pressing device includes a front baffle, a first translation drive mechanism and a first vertical drive mechanism. The first translation drive mechanism drives the front baffle to move horizontally along the conveying direction of the material plate, and the first vertical drive mechanism drives the front baffle to move up and down in the vertical direction.

3. The automatic positioning and die-cutting production line according to claim 1, characterized in that: The side clamping device includes a side baffle, a second translation drive mechanism and a second vertical drive mechanism. The second translation drive mechanism drives the side baffle to move horizontally perpendicular to the conveying direction of the material plate, and the second vertical drive mechanism drives the side baffle to move up and down in the vertical direction.

4. The automatic positioning and die-cutting production line according to claim 1, characterized in that: The material unloading and waste discharge device includes a material unloading module for sucking and releasing material plates, a waste discharge bottom mold for placing material plates, and a waste discharge upper mold. The waste discharge upper mold is arranged on the material unloading module, the waste discharge bottom mold is provided with perforations corresponding to the waste positions of the material plates, and the waste discharge upper mold is provided with ejectors. When the material unloading module drives the waste discharge upper mold to move downward relative to the waste discharge bottom mold, the ejectors eject the waste on the material plates downward from the perforations and remove them.

5. The automatic positioning and die-cutting production line according to claim 1, characterized in that: The material unloading and waste discharge device includes a material unloading module for sucking and releasing the material plate, a waste discharge bottom mold for placing the material plate, and a blowing structure for blowing away the waste. The blowing structure is located on the side of the waste discharge bottom mold. The waste discharge bottom mold is provided with a convex mold corresponding to the waste on the material plate. When the material unloading module sucks and drives the material plate to move downward relative to the waste discharge bottom mold, the convex mold pushes the waste on the material plate upward to remove it.

6. The automatic positioning and die-cutting production line according to claim 4 or 5, characterized in that: The material unloading and waste discharge device also includes a chip removal structure for sweeping away residual waste on the waste discharge bottom mold, and the chip removal structure is arranged on the material unloading mold group.

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